20807540015

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{1423}}^1\times {\mathrm{8101}}^1$

素因数の和:9567

約数の個数: 24

約数和(自身を含む): 26374148928

約数和(自身を除く): 5566608913

約数列:

[1, 5, 19, 95, 361, 1423, 1805, 7115, 8101, 27037, 40505, 135185, 153919, 513703, 769595, 2568515, 2924461, 11527723, 14622305, 57638615, 219026737, 1095133685, 4161508003, 20807540015]

約数ペア:

[(1, 20807540015), (5, 4161508003), (19, 1095133685), (95, 219026737), (361, 57638615), (1423, 14622305), (1805, 11527723), (7115, 2924461), (8101, 2568515), (27037, 769595), (40505, 513703), (135185, 153919)]