20937652960

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{31}}^2\times {\mathrm{397}}^1$

素因数の和:495

約数の個数: 288

約数和(自身を含む): 59756356800

約数和(自身を除く): 38818703840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 343, 392, 397, 434, 490, 496, 560, 620, 686, 784, 794, 868, 961, 980, 992, 1085, 1120, 1240, 1372, 1519, 1568, 1588, 1715, 1736, 1922, 1960, 1985, 2170, 2480, 2744, 2779, 3038, 3176, 3430, 3472, 3844, 3920, 3970, 4340, 4805, 4960, 5488, 5558, 6076, 6352, 6727, 6860, 6944, 7595, 7688, 7840, 7940, 8680, 9610, 10633, 10976, 11116, 12152, 12307, 12704, 13454, 13720, 13895, 15190, 15376, 15880, 17360, 19220, 19453, 21266, 22232, 24304, 24614, 26908, 27440, 27790, 30380, 30752, 31760, 33635, 34720, 38440, 38906, 42532, 44464, 47089, 48608, 49228, 53165, 53816, 54880, 55580, 60760, 61535, 63520, 67270, 76880, 77812, 85064, 86149, 88928, 94178, 97265, 98456, 106330, 107632, 111160, 121520, 123070, 134540, 136171, 153760, 155624, 170128, 172298, 188356, 194530, 196912, 212660, 215264, 222320, 235445, 243040, 246140, 269080, 272342, 311248, 329623, 340256, 344596, 376712, 381517, 389060, 393824, 425320, 430745, 444640, 470890, 492280, 538160, 544684, 603043, 622496, 659246, 680855, 689192, 753424, 763034, 778120, 850640, 861490, 941780, 984560, 1076320, 1089368, 1206086, 1318492, 1361710, 1378384, 1506848, 1526068, 1556240, 1648115, 1701280, 1722980, 1883560, 1907585, 1969120, 2178736, 2412172, 2636984, 2670619, 2723420, 2756768, 3015215, 3052136, 3112480, 3296230, 3445960, 3767120, 3815170, 4221301, 4357472, 4824344, 5273968, 5341238, 5446840, 6030430, 6104272, 6592460, 6891920, 7534240, 7630340, 8442602, 9648688, 10547936, 10682476, 10893680, 12060860, 12208544, 13184920, 13353095, 13783840, 15260680, 16885204, 18694333, 19297376, 21106505, 21364952, 21787360, 24121720, 26369840, 26706190, 30521360, 33770408, 37388666, 42213010, 42729904, 48243440, 52739680, 53412380, 61042720, 67540816, 74777332, 84426020, 85459808, 93471665, 96486880, 106824760, 130860331, 135081632, 149554664, 168852040, 186943330, 213649520, 261720662, 299109328, 337704080, 373886660, 427299040, 523441324, 598218656, 654301655, 675408160, 747773320, 1046882648, 1308603310, 1495546640, 2093765296, 2617206620, 2991093280, 4187530592, 5234413240, 10468826480, 20937652960]

約数ペア:

[(1, 20937652960), (2, 10468826480), (4, 5234413240), (5, 4187530592), (7, 2991093280), (8, 2617206620), (10, 2093765296), (14, 1495546640), (16, 1308603310), (20, 1046882648), (28, 747773320), (31, 675408160), (32, 654301655), (35, 598218656), (40, 523441324), (49, 427299040), (56, 373886660), (62, 337704080), (70, 299109328), (80, 261720662), (98, 213649520), (112, 186943330), (124, 168852040), (140, 149554664), (155, 135081632), (160, 130860331), (196, 106824760), (217, 96486880), (224, 93471665), (245, 85459808), (248, 84426020), (280, 74777332), (310, 67540816), (343, 61042720), (392, 53412380), (397, 52739680), (434, 48243440), (490, 42729904), (496, 42213010), (560, 37388666), (620, 33770408), (686, 30521360), (784, 26706190), (794, 26369840), (868, 24121720), (961, 21787360), (980, 21364952), (992, 21106505), (1085, 19297376), (1120, 18694333), (1240, 16885204), (1372, 15260680), (1519, 13783840), (1568, 13353095), (1588, 13184920), (1715, 12208544), (1736, 12060860), (1922, 10893680), (1960, 10682476), (1985, 10547936), (2170, 9648688), (2480, 8442602), (2744, 7630340), (2779, 7534240), (3038, 6891920), (3176, 6592460), (3430, 6104272), (3472, 6030430), (3844, 5446840), (3920, 5341238), (3970, 5273968), (4340, 4824344), (4805, 4357472), (4960, 4221301), (5488, 3815170), (5558, 3767120), (6076, 3445960), (6352, 3296230), (6727, 3112480), (6860, 3052136), (6944, 3015215), (7595, 2756768), (7688, 2723420), (7840, 2670619), (7940, 2636984), (8680, 2412172), (9610, 2178736), (10633, 1969120), (10976, 1907585), (11116, 1883560), (12152, 1722980), (12307, 1701280), (12704, 1648115), (13454, 1556240), (13720, 1526068), (13895, 1506848), (15190, 1378384), (15376, 1361710), (15880, 1318492), (17360, 1206086), (19220, 1089368), (19453, 1076320), (21266, 984560), (22232, 941780), (24304, 861490), (24614, 850640), (26908, 778120), (27440, 763034), (27790, 753424), (30380, 689192), (30752, 680855), (31760, 659246), (33635, 622496), (34720, 603043), (38440, 544684), (38906, 538160), (42532, 492280), (44464, 470890), (47089, 444640), (48608, 430745), (49228, 425320), (53165, 393824), (53816, 389060), (54880, 381517), (55580, 376712), (60760, 344596), (61535, 340256), (63520, 329623), (67270, 311248), (76880, 272342), (77812, 269080), (85064, 246140), (86149, 243040), (88928, 235445), (94178, 222320), (97265, 215264), (98456, 212660), (106330, 196912), (107632, 194530), (111160, 188356), (121520, 172298), (123070, 170128), (134540, 155624), (136171, 153760)]