20174570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{499}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 19137430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 499, 622, 998, 1555, 2495, 3110, 4043, 4990, 6487, 8086, 12974, 20215, 32435, 40430, 64870, 155189, 310378, 775945, 1551890, 2017457, 4034914, 10087285, 20174570]

約数ペア:

[(1, 20174570), (2, 10087285), (5, 4034914), (10, 2017457), (13, 1551890), (26, 775945), (65, 310378), (130, 155189), (311, 64870), (499, 40430), (622, 32435), (998, 20215), (1555, 12974), (2495, 8086), (3110, 6487), (4043, 4990)]