20566570

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17535830

約数列:

[1, 2, 5, 10, 71, 83, 142, 166, 349, 355, 415, 698, 710, 830, 1745, 3490, 5893, 11786, 24779, 28967, 29465, 49558, 57934, 58930, 123895, 144835, 247790, 289670, 2056657, 4113314, 10283285, 20566570]

約数ペア:

[(1, 20566570), (2, 10283285), (5, 4113314), (10, 2056657), (71, 289670), (83, 247790), (142, 144835), (166, 123895), (349, 58930), (355, 57934), (415, 49558), (698, 29465), (710, 28967), (830, 24779), (1745, 11786), (3490, 5893)]