18421960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15881}}^1$

素因数の和:15921

約数の個数: 32

約数和(自身を含む): 42881400

約数和(自身を除く): 24459440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15881, 31762, 63524, 79405, 127048, 158810, 317620, 460549, 635240, 921098, 1842196, 2302745, 3684392, 4605490, 9210980, 18421960]

約数ペア:

[(1, 18421960), (2, 9210980), (4, 4605490), (5, 3684392), (8, 2302745), (10, 1842196), (20, 921098), (29, 635240), (40, 460549), (58, 317620), (116, 158810), (145, 127048), (232, 79405), (290, 63524), (580, 31762), (1160, 15881)]