1020781640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{2207}}^1$

素因数の和:2622

約数の個数: 64

約数和(自身を含む): 2378280960

約数和(自身を除く): 1357499320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 373, 620, 746, 1240, 1492, 1865, 2207, 2984, 3730, 4414, 7460, 8828, 11035, 11563, 14920, 17656, 22070, 23126, 44140, 46252, 57815, 68417, 88280, 92504, 115630, 136834, 231260, 273668, 342085, 462520, 547336, 684170, 823211, 1368340, 1646422, 2736680, 3292844, 4116055, 6585688, 8232110, 16464220, 25519541, 32928440, 51039082, 102078164, 127597705, 204156328, 255195410, 510390820, 1020781640]

約数ペア:

[(1, 1020781640), (2, 510390820), (4, 255195410), (5, 204156328), (8, 127597705), (10, 102078164), (20, 51039082), (31, 32928440), (40, 25519541), (62, 16464220), (124, 8232110), (155, 6585688), (248, 4116055), (310, 3292844), (373, 2736680), (620, 1646422), (746, 1368340), (1240, 823211), (1492, 684170), (1865, 547336), (2207, 462520), (2984, 342085), (3730, 273668), (4414, 231260), (7460, 136834), (8828, 115630), (11035, 92504), (11563, 88280), (14920, 68417), (17656, 57815), (22070, 46252), (23126, 44140)]