64215320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123491}}^1$

素因数の和:123515

約数の個数: 32

約数和(自身を含む): 155599920

約数和(自身を除く): 91384600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123491, 246982, 493964, 617455, 987928, 1234910, 1605383, 2469820, 3210766, 4939640, 6421532, 8026915, 12843064, 16053830, 32107660, 64215320]

約数ペア:

[(1, 64215320), (2, 32107660), (4, 16053830), (5, 12843064), (8, 8026915), (10, 6421532), (13, 4939640), (20, 3210766), (26, 2469820), (40, 1605383), (52, 1234910), (65, 987928), (104, 617455), (130, 493964), (260, 246982), (520, 123491)]