20198384

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 20781136

約数列:

[1, 2, 4, 8, 16, 29, 58, 101, 116, 202, 232, 404, 431, 464, 808, 862, 1616, 1724, 2929, 3448, 5858, 6896, 11716, 12499, 23432, 24998, 43531, 46864, 49996, 87062, 99992, 174124, 199984, 348248, 696496, 1262399, 2524798, 5049596, 10099192, 20198384]

約数ペア:

[(1, 20198384), (2, 10099192), (4, 5049596), (8, 2524798), (16, 1262399), (29, 696496), (58, 348248), (101, 199984), (116, 174124), (202, 99992), (232, 87062), (404, 49996), (431, 46864), (464, 43531), (808, 24998), (862, 23432), (1616, 12499), (1724, 11716), (2929, 6896), (3448, 5858)]