1375580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:749

約数の個数: 24

約数和(自身を含む): 2919840

約数和(自身を除く): 1544260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 631, 1090, 1262, 2180, 2524, 3155, 6310, 12620, 68779, 137558, 275116, 343895, 687790, 1375580]

約数ペア:

[(1, 1375580), (2, 687790), (4, 343895), (5, 275116), (10, 137558), (20, 68779), (109, 12620), (218, 6310), (436, 3155), (545, 2524), (631, 2180), (1090, 1262)]