164178145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 216236160

約数和(自身を除く): 52058015

約数列:

[1, 5, 19, 41, 61, 95, 205, 305, 691, 779, 1159, 2501, 3455, 3895, 5795, 12505, 13129, 28331, 42151, 47519, 65645, 141655, 210755, 237595, 538289, 800869, 1728191, 2691445, 4004345, 8640955, 32835629, 164178145]

約数ペア:

[(1, 164178145), (5, 32835629), (19, 8640955), (41, 4004345), (61, 2691445), (95, 1728191), (205, 800869), (305, 538289), (691, 237595), (779, 210755), (1159, 141655), (2501, 65645), (3455, 47519), (3895, 42151), (5795, 28331), (12505, 13129)]