84815980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{53681}}^1$

素因数の和:53769

約数の個数: 24

約数和(自身を含む): 180371520

約数和(自身を除く): 95555540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 53681, 107362, 214724, 268405, 536810, 1073620, 4240799, 8481598, 16963196, 21203995, 42407990, 84815980]

約数ペア:

[(1, 84815980), (2, 42407990), (4, 21203995), (5, 16963196), (10, 8481598), (20, 4240799), (79, 1073620), (158, 536810), (316, 268405), (395, 214724), (790, 107362), (1580, 53681)]