8626280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 21364560

約数和(自身を除く): 12738280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 313, 424, 520, 530, 626, 689, 1060, 1252, 1378, 1565, 2120, 2504, 2756, 3130, 3445, 4069, 5512, 6260, 6890, 8138, 12520, 13780, 16276, 16589, 20345, 27560, 32552, 33178, 40690, 66356, 81380, 82945, 132712, 162760, 165890, 215657, 331780, 431314, 663560, 862628, 1078285, 1725256, 2156570, 4313140, 8626280]

約数ペア:

[(1, 8626280), (2, 4313140), (4, 2156570), (5, 1725256), (8, 1078285), (10, 862628), (13, 663560), (20, 431314), (26, 331780), (40, 215657), (52, 165890), (53, 162760), (65, 132712), (104, 82945), (106, 81380), (130, 66356), (212, 40690), (260, 33178), (265, 32552), (313, 27560), (424, 20345), (520, 16589), (530, 16276), (626, 13780), (689, 12520), (1060, 8138), (1252, 6890), (1378, 6260), (1565, 5512), (2120, 4069), (2504, 3445), (2756, 3130)]