215508280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 128

約数和(自身を含む): 558835200

約数和(自身を除く): 343326920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 31, 40, 52, 58, 62, 65, 104, 116, 124, 130, 145, 155, 232, 248, 260, 290, 310, 377, 403, 461, 520, 580, 620, 754, 806, 899, 922, 1160, 1240, 1508, 1612, 1798, 1844, 1885, 2015, 2305, 3016, 3224, 3596, 3688, 3770, 4030, 4495, 4610, 5993, 7192, 7540, 8060, 8990, 9220, 11687, 11986, 13369, 14291, 15080, 16120, 17980, 18440, 23374, 23972, 26738, 28582, 29965, 35960, 46748, 47944, 53476, 57164, 58435, 59930, 66845, 71455, 93496, 106952, 114328, 116870, 119860, 133690, 142910, 173797, 185783, 233740, 239720, 267380, 285820, 347594, 371566, 414439, 467480, 534760, 571640, 695188, 743132, 828878, 868985, 928915, 1390376, 1486264, 1657756, 1737970, 1857830, 2072195, 3315512, 3475940, 3715660, 4144390, 5387707, 6951880, 7431320, 8288780, 10775414, 16577560, 21550828, 26938535, 43101656, 53877070, 107754140, 215508280]

約数ペア:

[(1, 215508280), (2, 107754140), (4, 53877070), (5, 43101656), (8, 26938535), (10, 21550828), (13, 16577560), (20, 10775414), (26, 8288780), (29, 7431320), (31, 6951880), (40, 5387707), (52, 4144390), (58, 3715660), (62, 3475940), (65, 3315512), (104, 2072195), (116, 1857830), (124, 1737970), (130, 1657756), (145, 1486264), (155, 1390376), (232, 928915), (248, 868985), (260, 828878), (290, 743132), (310, 695188), (377, 571640), (403, 534760), (461, 467480), (520, 414439), (580, 371566), (620, 347594), (754, 285820), (806, 267380), (899, 239720), (922, 233740), (1160, 185783), (1240, 173797), (1508, 142910), (1612, 133690), (1798, 119860), (1844, 116870), (1885, 114328), (2015, 106952), (2305, 93496), (3016, 71455), (3224, 66845), (3596, 59930), (3688, 58435), (3770, 57164), (4030, 53476), (4495, 47944), (4610, 46748), (5993, 35960), (7192, 29965), (7540, 28582), (8060, 26738), (8990, 23972), (9220, 23374), (11687, 18440), (11986, 17980), (13369, 16120), (14291, 15080)]