20015075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1453}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 27044400

約数和(自身を除く): 7029325

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1453, 2755, 7265, 13775, 27607, 36325, 42137, 138035, 210685, 690175, 800603, 1053425, 4003015, 20015075]

約数ペア:

[(1, 20015075), (5, 4003015), (19, 1053425), (25, 800603), (29, 690175), (95, 210685), (145, 138035), (475, 42137), (551, 36325), (725, 27607), (1453, 13775), (2755, 7265)]