64338040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123727}}^1$

素因数の和:123751

約数の個数: 32

約数和(自身を含む): 155897280

約数和(自身を除く): 91559240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123727, 247454, 494908, 618635, 989816, 1237270, 1608451, 2474540, 3216902, 4949080, 6433804, 8042255, 12867608, 16084510, 32169020, 64338040]

約数ペア:

[(1, 64338040), (2, 32169020), (4, 16084510), (5, 12867608), (8, 8042255), (10, 6433804), (13, 4949080), (20, 3216902), (26, 2474540), (40, 1608451), (52, 1237270), (65, 989816), (104, 618635), (130, 494908), (260, 247454), (520, 123727)]