20203372

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22132628

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 139, 179, 203, 278, 358, 406, 556, 716, 812, 973, 1253, 1946, 2506, 3892, 4031, 5012, 5191, 8062, 10382, 16124, 20764, 24881, 28217, 36337, 49762, 56434, 72674, 99524, 112868, 145348, 174167, 348334, 696668, 721549, 1443098, 2886196, 5050843, 10101686, 20203372]

約数ペア:

[(1, 20203372), (2, 10101686), (4, 5050843), (7, 2886196), (14, 1443098), (28, 721549), (29, 696668), (58, 348334), (116, 174167), (139, 145348), (179, 112868), (203, 99524), (278, 72674), (358, 56434), (406, 49762), (556, 36337), (716, 28217), (812, 24881), (973, 20764), (1253, 16124), (1946, 10382), (2506, 8062), (3892, 5191), (4031, 5012)]