68945180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{4099}}^1$

素因数の和:4166

約数の個数: 36

約数和(自身を含む): 149986200

約数和(自身を除く): 81041020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4099, 4205, 8198, 8410, 16396, 16820, 20495, 40990, 81980, 118871, 237742, 475484, 594355, 1188710, 2377420, 3447259, 6894518, 13789036, 17236295, 34472590, 68945180]

約数ペア:

[(1, 68945180), (2, 34472590), (4, 17236295), (5, 13789036), (10, 6894518), (20, 3447259), (29, 2377420), (58, 1188710), (116, 594355), (145, 475484), (290, 237742), (580, 118871), (841, 81980), (1682, 40990), (3364, 20495), (4099, 16820), (4205, 16396), (8198, 8410)]