1390660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2243}}^1$

素因数の和:2283

約数の個数: 24

約数和(自身を含む): 3015936

約数和(自身を除く): 1625276

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2243, 4486, 8972, 11215, 22430, 44860, 69533, 139066, 278132, 347665, 695330, 1390660]

約数ペア:

[(1, 1390660), (2, 695330), (4, 347665), (5, 278132), (10, 139066), (20, 69533), (31, 44860), (62, 22430), (124, 11215), (155, 8972), (310, 4486), (620, 2243)]