18498920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42043}}^1$

素因数の和:42065

約数の個数: 32

約数和(自身を含む): 45407520

約数和(自身を除く): 26908600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42043, 84086, 168172, 210215, 336344, 420430, 462473, 840860, 924946, 1681720, 1849892, 2312365, 3699784, 4624730, 9249460, 18498920]

約数ペア:

[(1, 18498920), (2, 9249460), (4, 4624730), (5, 3699784), (8, 2312365), (10, 1849892), (11, 1681720), (20, 924946), (22, 840860), (40, 462473), (44, 420430), (55, 336344), (88, 210215), (110, 168172), (220, 84086), (440, 42043)]