15521960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13381}}^1$

素因数の和:13421

約数の個数: 32

約数和(自身を含む): 36131400

約数和(自身を除く): 20609440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 13381, 26762, 53524, 66905, 107048, 133810, 267620, 388049, 535240, 776098, 1552196, 1940245, 3104392, 3880490, 7760980, 15521960]

約数ペア:

[(1, 15521960), (2, 7760980), (4, 3880490), (5, 3104392), (8, 1940245), (10, 1552196), (20, 776098), (29, 535240), (40, 388049), (58, 267620), (116, 133810), (145, 107048), (232, 66905), (290, 53524), (580, 26762), (1160, 13381)]