81267120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:392

約数の個数: 240

約数和(自身を含む): 308265984

約数和(自身を除く): 226998864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 48, 55, 60, 62, 66, 72, 80, 88, 90, 93, 99, 110, 120, 124, 132, 144, 155, 165, 176, 180, 186, 198, 220, 240, 248, 264, 279, 310, 330, 331, 341, 360, 372, 396, 440, 465, 495, 496, 528, 558, 620, 660, 662, 682, 720, 744, 792, 880, 930, 990, 993, 1023, 1116, 1240, 1320, 1324, 1364, 1395, 1488, 1584, 1655, 1705, 1860, 1980, 1986, 2046, 2232, 2480, 2640, 2648, 2728, 2790, 2979, 3069, 3310, 3410, 3641, 3720, 3960, 3972, 4092, 4464, 4965, 5115, 5296, 5456, 5580, 5958, 6138, 6620, 6820, 7282, 7440, 7920, 7944, 8184, 9930, 10230, 10261, 10923, 11160, 11916, 12276, 13240, 13640, 14564, 14895, 15345, 15888, 16368, 18205, 19860, 20460, 20522, 21846, 22320, 23832, 24552, 26480, 27280, 29128, 29790, 30690, 30783, 32769, 36410, 39720, 40920, 41044, 43692, 47664, 49104, 51305, 54615, 58256, 59580, 61380, 61566, 65538, 72820, 79440, 81840, 82088, 87384, 92349, 102610, 109230, 112871, 119160, 122760, 123132, 131076, 145640, 153915, 163845, 164176, 174768, 184698, 205220, 218460, 225742, 238320, 245520, 246264, 262152, 291280, 307830, 327690, 338613, 369396, 410440, 436920, 451484, 461745, 492528, 524304, 564355, 615660, 655380, 677226, 738792, 820880, 873840, 902968, 923490, 1015839, 1128710, 1231320, 1310760, 1354452, 1477584, 1693065, 1805936, 1846980, 2031678, 2257420, 2462640, 2621520, 2708904, 3386130, 3693960, 4063356, 4514840, 5079195, 5417808, 6772260, 7387920, 8126712, 9029680, 10158390, 13544520, 16253424, 20316780, 27089040, 40633560, 81267120]

約数ペア:

[(1, 81267120), (2, 40633560), (3, 27089040), (4, 20316780), (5, 16253424), (6, 13544520), (8, 10158390), (9, 9029680), (10, 8126712), (11, 7387920), (12, 6772260), (15, 5417808), (16, 5079195), (18, 4514840), (20, 4063356), (22, 3693960), (24, 3386130), (30, 2708904), (31, 2621520), (33, 2462640), (36, 2257420), (40, 2031678), (44, 1846980), (45, 1805936), (48, 1693065), (55, 1477584), (60, 1354452), (62, 1310760), (66, 1231320), (72, 1128710), (80, 1015839), (88, 923490), (90, 902968), (93, 873840), (99, 820880), (110, 738792), (120, 677226), (124, 655380), (132, 615660), (144, 564355), (155, 524304), (165, 492528), (176, 461745), (180, 451484), (186, 436920), (198, 410440), (220, 369396), (240, 338613), (248, 327690), (264, 307830), (279, 291280), (310, 262152), (330, 246264), (331, 245520), (341, 238320), (360, 225742), (372, 218460), (396, 205220), (440, 184698), (465, 174768), (495, 164176), (496, 163845), (528, 153915), (558, 145640), (620, 131076), (660, 123132), (662, 122760), (682, 119160), (720, 112871), (744, 109230), (792, 102610), (880, 92349), (930, 87384), (990, 82088), (993, 81840), (1023, 79440), (1116, 72820), (1240, 65538), (1320, 61566), (1324, 61380), (1364, 59580), (1395, 58256), (1488, 54615), (1584, 51305), (1655, 49104), (1705, 47664), (1860, 43692), (1980, 41044), (1986, 40920), (2046, 39720), (2232, 36410), (2480, 32769), (2640, 30783), (2648, 30690), (2728, 29790), (2790, 29128), (2979, 27280), (3069, 26480), (3310, 24552), (3410, 23832), (3641, 22320), (3720, 21846), (3960, 20522), (3972, 20460), (4092, 19860), (4464, 18205), (4965, 16368), (5115, 15888), (5296, 15345), (5456, 14895), (5580, 14564), (5958, 13640), (6138, 13240), (6620, 12276), (6820, 11916), (7282, 11160), (7440, 10923), (7920, 10261), (7944, 10230), (8184, 9930)]