1999323760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{397}}^1$

素因数の和:480

約数の個数: 240

約数和(自身を含む): 5894997696

約数和(自身を除く): 3895673936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 80, 85, 92, 112, 115, 119, 136, 140, 161, 170, 184, 230, 238, 272, 280, 322, 340, 368, 391, 397, 460, 476, 529, 560, 595, 644, 680, 782, 794, 805, 920, 952, 1058, 1190, 1288, 1360, 1564, 1588, 1610, 1840, 1904, 1955, 1985, 2116, 2380, 2576, 2645, 2737, 2779, 3128, 3176, 3220, 3703, 3910, 3970, 4232, 4760, 5290, 5474, 5558, 6256, 6352, 6440, 6749, 7406, 7820, 7940, 8464, 8993, 9131, 9520, 10580, 10948, 11116, 12880, 13498, 13685, 13895, 14812, 15640, 15880, 17986, 18262, 18515, 21160, 21896, 22232, 26996, 27370, 27790, 29624, 31280, 31760, 33745, 35972, 36524, 37030, 42320, 43792, 44464, 44965, 45655, 47243, 53992, 54740, 55580, 59248, 62951, 63917, 67490, 71944, 73048, 74060, 89930, 91310, 94486, 107984, 109480, 111160, 125902, 127834, 134980, 143888, 146096, 148120, 155227, 179860, 182620, 188972, 210013, 218960, 222320, 236215, 251804, 255668, 269960, 296240, 310454, 314755, 319585, 359720, 365240, 377944, 420026, 472430, 503608, 511336, 539920, 620908, 629510, 639170, 719440, 730480, 755888, 776135, 840052, 944860, 1007216, 1022672, 1050065, 1086589, 1241816, 1259020, 1278340, 1470091, 1552270, 1680104, 1889720, 2100130, 2173178, 2483632, 2518040, 2556680, 2940182, 3104540, 3360208, 3570221, 3779440, 4200260, 4346356, 5036080, 5113360, 5432945, 5880364, 6209080, 7140442, 7350455, 8400520, 8692712, 10865890, 11760728, 12418160, 14280884, 14700910, 16801040, 17385424, 17851105, 21731780, 23521456, 24991547, 28561768, 29401820, 35702210, 43463560, 49983094, 57123536, 58803640, 71404420, 86927120, 99966188, 117607280, 124957735, 142808840, 199932376, 249915470, 285617680, 399864752, 499830940, 999661880, 1999323760]

約数ペア:

[(1, 1999323760), (2, 999661880), (4, 499830940), (5, 399864752), (7, 285617680), (8, 249915470), (10, 199932376), (14, 142808840), (16, 124957735), (17, 117607280), (20, 99966188), (23, 86927120), (28, 71404420), (34, 58803640), (35, 57123536), (40, 49983094), (46, 43463560), (56, 35702210), (68, 29401820), (70, 28561768), (80, 24991547), (85, 23521456), (92, 21731780), (112, 17851105), (115, 17385424), (119, 16801040), (136, 14700910), (140, 14280884), (161, 12418160), (170, 11760728), (184, 10865890), (230, 8692712), (238, 8400520), (272, 7350455), (280, 7140442), (322, 6209080), (340, 5880364), (368, 5432945), (391, 5113360), (397, 5036080), (460, 4346356), (476, 4200260), (529, 3779440), (560, 3570221), (595, 3360208), (644, 3104540), (680, 2940182), (782, 2556680), (794, 2518040), (805, 2483632), (920, 2173178), (952, 2100130), (1058, 1889720), (1190, 1680104), (1288, 1552270), (1360, 1470091), (1564, 1278340), (1588, 1259020), (1610, 1241816), (1840, 1086589), (1904, 1050065), (1955, 1022672), (1985, 1007216), (2116, 944860), (2380, 840052), (2576, 776135), (2645, 755888), (2737, 730480), (2779, 719440), (3128, 639170), (3176, 629510), (3220, 620908), (3703, 539920), (3910, 511336), (3970, 503608), (4232, 472430), (4760, 420026), (5290, 377944), (5474, 365240), (5558, 359720), (6256, 319585), (6352, 314755), (6440, 310454), (6749, 296240), (7406, 269960), (7820, 255668), (7940, 251804), (8464, 236215), (8993, 222320), (9131, 218960), (9520, 210013), (10580, 188972), (10948, 182620), (11116, 179860), (12880, 155227), (13498, 148120), (13685, 146096), (13895, 143888), (14812, 134980), (15640, 127834), (15880, 125902), (17986, 111160), (18262, 109480), (18515, 107984), (21160, 94486), (21896, 91310), (22232, 89930), (26996, 74060), (27370, 73048), (27790, 71944), (29624, 67490), (31280, 63917), (31760, 62951), (33745, 59248), (35972, 55580), (36524, 54740), (37030, 53992), (42320, 47243), (43792, 45655), (44464, 44965)]