20156276

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 42282240

約数和(自身を除く): 22125964

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 103, 116, 203, 206, 241, 406, 412, 482, 721, 812, 964, 1442, 1687, 2884, 2987, 3374, 5974, 6748, 6989, 11948, 13978, 20909, 24823, 27956, 41818, 48923, 49646, 83636, 97846, 99292, 173761, 195692, 347522, 695044, 719867, 1439734, 2879468, 5039069, 10078138, 20156276]

約数ペア:

[(1, 20156276), (2, 10078138), (4, 5039069), (7, 2879468), (14, 1439734), (28, 719867), (29, 695044), (58, 347522), (103, 195692), (116, 173761), (203, 99292), (206, 97846), (241, 83636), (406, 49646), (412, 48923), (482, 41818), (721, 27956), (812, 24823), (964, 20909), (1442, 13978), (1687, 11948), (2884, 6989), (2987, 6748), (3374, 5974)]