85996980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1999}}^1$

素因数の和:2253

約数の個数: 72

約数和(自身を含む): 262080000

約数和(自身を除く): 176083020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 1999, 2151, 2390, 2868, 3585, 3998, 4302, 4780, 5997, 7170, 7996, 8604, 9995, 10755, 11994, 14340, 17991, 19990, 21510, 23988, 29985, 35982, 39980, 43020, 59970, 71964, 89955, 119940, 179910, 359820, 477761, 955522, 1433283, 1911044, 2388805, 2866566, 4299849, 4777610, 5733132, 7166415, 8599698, 9555220, 14332830, 17199396, 21499245, 28665660, 42998490, 85996980]

約数ペア:

[(1, 85996980), (2, 42998490), (3, 28665660), (4, 21499245), (5, 17199396), (6, 14332830), (9, 9555220), (10, 8599698), (12, 7166415), (15, 5733132), (18, 4777610), (20, 4299849), (30, 2866566), (36, 2388805), (45, 1911044), (60, 1433283), (90, 955522), (180, 477761), (239, 359820), (478, 179910), (717, 119940), (956, 89955), (1195, 71964), (1434, 59970), (1999, 43020), (2151, 39980), (2390, 35982), (2868, 29985), (3585, 23988), (3998, 21510), (4302, 19990), (4780, 17991), (5997, 14340), (7170, 11994), (7996, 10755), (8604, 9995)]