645320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:114

約数の個数: 64

約数和(自身を含む): 1678320

約数和(自身を除く): 1033000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 73, 85, 104, 130, 136, 146, 170, 221, 260, 292, 340, 365, 442, 520, 584, 680, 730, 884, 949, 1105, 1241, 1460, 1768, 1898, 2210, 2482, 2920, 3796, 4420, 4745, 4964, 6205, 7592, 8840, 9490, 9928, 12410, 16133, 18980, 24820, 32266, 37960, 49640, 64532, 80665, 129064, 161330, 322660, 645320]

約数ペア:

[(1, 645320), (2, 322660), (4, 161330), (5, 129064), (8, 80665), (10, 64532), (13, 49640), (17, 37960), (20, 32266), (26, 24820), (34, 18980), (40, 16133), (52, 12410), (65, 9928), (68, 9490), (73, 8840), (85, 7592), (104, 6205), (130, 4964), (136, 4745), (146, 4420), (170, 3796), (221, 2920), (260, 2482), (292, 2210), (340, 1898), (365, 1768), (442, 1460), (520, 1241), (584, 1105), (680, 949), (730, 884)]