1399681540

素因数分解:

$2^2\times 5^1\times {\mathrm{3491}}^1\times {\mathrm{20047}}^1$

素因数の和:23547

約数の個数: 24

約数和(自身を含む): 2940319872

約数和(自身を除く): 1540638332

約数列:

[1, 2, 4, 5, 10, 20, 3491, 6982, 13964, 17455, 20047, 34910, 40094, 69820, 80188, 100235, 200470, 400940, 69984077, 139968154, 279936308, 349920385, 699840770, 1399681540]

約数ペア:

[(1, 1399681540), (2, 699840770), (4, 349920385), (5, 279936308), (10, 139968154), (20, 69984077), (3491, 400940), (6982, 200470), (13964, 100235), (17455, 80188), (20047, 69820), (34910, 40094)]