49987180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{17981}}^1$

素因数の和:18129

約数の個数: 24

約数和(自身を含む): 105734160

約数和(自身を除く): 55746980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 17981, 35962, 71924, 89905, 179810, 359620, 2499359, 4998718, 9997436, 12496795, 24993590, 49987180]

約数ペア:

[(1, 49987180), (2, 24993590), (4, 12496795), (5, 9997436), (10, 4998718), (20, 2499359), (139, 359620), (278, 179810), (556, 89905), (695, 71924), (1390, 35962), (2780, 17981)]