25756445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 38895552

約数和(自身を除く): 13139107

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 163, 169, 187, 221, 715, 815, 845, 935, 1105, 1793, 1859, 2119, 2431, 2771, 2873, 8965, 9295, 10595, 12155, 13855, 14365, 23309, 27547, 30481, 31603, 36023, 116545, 137735, 152405, 158015, 180115, 303017, 396253, 468299, 1515085, 1981265, 2341495, 5151289, 25756445]

約数ペア:

[(1, 25756445), (5, 5151289), (11, 2341495), (13, 1981265), (17, 1515085), (55, 468299), (65, 396253), (85, 303017), (143, 180115), (163, 158015), (169, 152405), (187, 137735), (221, 116545), (715, 36023), (815, 31603), (845, 30481), (935, 27547), (1105, 23309), (1793, 14365), (1859, 13855), (2119, 12155), (2431, 10595), (2771, 9295), (2873, 8965)]