64119640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123307}}^1$

素因数の和:123331

約数の個数: 32

約数和(自身を含む): 155368080

約数和(自身を除く): 91248440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123307, 246614, 493228, 616535, 986456, 1233070, 1602991, 2466140, 3205982, 4932280, 6411964, 8014955, 12823928, 16029910, 32059820, 64119640]

約数ペア:

[(1, 64119640), (2, 32059820), (4, 16029910), (5, 12823928), (8, 8014955), (10, 6411964), (13, 4932280), (20, 3205982), (26, 2466140), (40, 1602991), (52, 1233070), (65, 986456), (104, 616535), (130, 493228), (260, 246614), (520, 123307)]