20837570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1801}}^1$

素因数の和:1910

約数の個数: 32

約数和(自身を含む): 40869360

約数和(自身を除く): 20031790

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 1801, 2314, 3602, 5785, 9005, 11570, 18010, 23413, 46826, 117065, 160289, 234130, 320578, 801445, 1602890, 2083757, 4167514, 10418785, 20837570]

約数ペア:

[(1, 20837570), (2, 10418785), (5, 4167514), (10, 2083757), (13, 1602890), (26, 801445), (65, 320578), (89, 234130), (130, 160289), (178, 117065), (445, 46826), (890, 23413), (1157, 18010), (1801, 11570), (2314, 9005), (3602, 5785)]