20146744

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 18862856

約数列:

[1, 2, 4, 8, 41, 82, 164, 239, 257, 328, 478, 514, 956, 1028, 1912, 2056, 9799, 10537, 19598, 21074, 39196, 42148, 61423, 78392, 84296, 122846, 245692, 491384, 2518343, 5036686, 10073372, 20146744]

約数ペア:

[(1, 20146744), (2, 10073372), (4, 5036686), (8, 2518343), (41, 491384), (82, 245692), (164, 122846), (239, 84296), (257, 78392), (328, 61423), (478, 42148), (514, 39196), (956, 21074), (1028, 19598), (1912, 10537), (2056, 9799)]