71631080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{947}}^1$

素因数の和:1050

約数の個数: 64

約数和(自身を含む): 169274880

約数和(自身を除く): 97643800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 947, 1220, 1240, 1891, 1894, 2440, 3782, 3788, 4735, 7564, 7576, 9455, 9470, 15128, 18910, 18940, 29357, 37820, 37880, 57767, 58714, 75640, 115534, 117428, 146785, 231068, 234856, 288835, 293570, 462136, 577670, 587140, 1155340, 1174280, 1790777, 2310680, 3581554, 7163108, 8953885, 14326216, 17907770, 35815540, 71631080]

約数ペア:

[(1, 71631080), (2, 35815540), (4, 17907770), (5, 14326216), (8, 8953885), (10, 7163108), (20, 3581554), (31, 2310680), (40, 1790777), (61, 1174280), (62, 1155340), (122, 587140), (124, 577670), (155, 462136), (244, 293570), (248, 288835), (305, 234856), (310, 231068), (488, 146785), (610, 117428), (620, 115534), (947, 75640), (1220, 58714), (1240, 57767), (1891, 37880), (1894, 37820), (2440, 29357), (3782, 18940), (3788, 18910), (4735, 15128), (7564, 9470), (7576, 9455)]