3271880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 7422840

約数和(自身を除く): 4150960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 521, 628, 785, 1042, 1256, 1570, 2084, 2605, 3140, 4168, 5210, 6280, 10420, 20840, 81797, 163594, 327188, 408985, 654376, 817970, 1635940, 3271880]

約数ペア:

[(1, 3271880), (2, 1635940), (4, 817970), (5, 654376), (8, 408985), (10, 327188), (20, 163594), (40, 81797), (157, 20840), (314, 10420), (521, 6280), (628, 5210), (785, 4168), (1042, 3140), (1256, 2605), (1570, 2084)]