20399025

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{7351}}^1$

素因数の和:7401

約数の個数: 24

約数和(自身を含む): 34642624

約数和(自身を除く): 14243599

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 7351, 22053, 36755, 110265, 183775, 271987, 551325, 815961, 1359935, 4079805, 6799675, 20399025]

約数ペア:

[(1, 20399025), (3, 6799675), (5, 4079805), (15, 1359935), (25, 815961), (37, 551325), (75, 271987), (111, 183775), (185, 110265), (555, 36755), (925, 22053), (2775, 7351)]