20565668812

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{647}}^1\times {\mathrm{3617}}^1$

素因数の和:4307

約数の個数: 48

約数和(自身を含む): 39058770240

約数和(自身を除く): 18493101428

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 647, 676, 1294, 2197, 2588, 3617, 4394, 7234, 8411, 8788, 14468, 16822, 33644, 47021, 94042, 109343, 188084, 218686, 437372, 611273, 1222546, 1421459, 2340199, 2445092, 2842918, 4680398, 5685836, 7946549, 9360796, 15893098, 30422587, 31786196, 60845174, 121690348, 395493631, 790987262, 1581974524, 5141417203, 10282834406, 20565668812]

約数ペア:

[(1, 20565668812), (2, 10282834406), (4, 5141417203), (13, 1581974524), (26, 790987262), (52, 395493631), (169, 121690348), (338, 60845174), (647, 31786196), (676, 30422587), (1294, 15893098), (2197, 9360796), (2588, 7946549), (3617, 5685836), (4394, 4680398), (7234, 2842918), (8411, 2445092), (8788, 2340199), (14468, 1421459), (16822, 1222546), (33644, 611273), (47021, 437372), (94042, 218686), (109343, 188084)]