221615280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9929}}^1$

素因数の和:9979

約数の個数: 120

約数和(自身を含む): 768343680

約数和(自身を除く): 546728400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 9929, 11160, 19858, 22320, 29787, 39716, 49645, 59574, 79432, 89361, 99290, 119148, 148935, 158864, 178722, 198580, 238296, 297870, 307799, 357444, 397160, 446805, 476592, 595740, 615598, 714888, 794320, 893610, 923397, 1191480, 1231196, 1429776, 1538995, 1787220, 1846794, 2382960, 2462392, 2770191, 3077990, 3574440, 3693588, 4616985, 4924784, 5540382, 6155980, 7148880, 7387176, 9233970, 11080764, 12311960, 13850955, 14774352, 18467940, 22161528, 24623920, 27701910, 36935880, 44323056, 55403820, 73871760, 110807640, 221615280]

約数ペア:

[(1, 221615280), (2, 110807640), (3, 73871760), (4, 55403820), (5, 44323056), (6, 36935880), (8, 27701910), (9, 24623920), (10, 22161528), (12, 18467940), (15, 14774352), (16, 13850955), (18, 12311960), (20, 11080764), (24, 9233970), (30, 7387176), (31, 7148880), (36, 6155980), (40, 5540382), (45, 4924784), (48, 4616985), (60, 3693588), (62, 3574440), (72, 3077990), (80, 2770191), (90, 2462392), (93, 2382960), (120, 1846794), (124, 1787220), (144, 1538995), (155, 1429776), (180, 1231196), (186, 1191480), (240, 923397), (248, 893610), (279, 794320), (310, 714888), (360, 615598), (372, 595740), (465, 476592), (496, 446805), (558, 397160), (620, 357444), (720, 307799), (744, 297870), (930, 238296), (1116, 198580), (1240, 178722), (1395, 158864), (1488, 148935), (1860, 119148), (2232, 99290), (2480, 89361), (2790, 79432), (3720, 59574), (4464, 49645), (5580, 39716), (7440, 29787), (9929, 22320), (11160, 19858)]