1391540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1697}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 2995272

約数和(自身を除く): 1603732

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1697, 3394, 6788, 8485, 16970, 33940, 69577, 139154, 278308, 347885, 695770, 1391540]

約数ペア:

[(1, 1391540), (2, 695770), (4, 347885), (5, 278308), (10, 139154), (20, 69577), (41, 33940), (82, 16970), (164, 8485), (205, 6788), (410, 3394), (820, 1697)]