2912129091640

素因数分解:

$2^3\times 5^1\times {\mathrm{442807}}^1\times {\mathrm{164413}}^1$

素因数の和:607231

約数の個数: 32

約数和(自身を含む): 6552345106080

約数和(自身を除く): 3640216014440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 164413, 328826, 442807, 657652, 822065, 885614, 1315304, 1644130, 1771228, 2214035, 3288260, 3542456, 4428070, 6576520, 8856140, 17712280, 72803227291, 145606454582, 291212909164, 364016136455, 582425818328, 728032272910, 1456064545820, 2912129091640]

約数ペア:

[(1, 2912129091640), (2, 1456064545820), (4, 728032272910), (5, 582425818328), (8, 364016136455), (10, 291212909164), (20, 145606454582), (40, 72803227291), (164413, 17712280), (328826, 8856140), (442807, 6576520), (657652, 4428070), (822065, 3542456), (885614, 3288260), (1315304, 2214035), (1644130, 1771228)]