64969540

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{11987}}^1$

素因数の和:12267

約数の個数: 24

約数和(自身を含む): 136950912

約数和(自身を除く): 71981372

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 11987, 23974, 47948, 59935, 119870, 239740, 3248477, 6496954, 12993908, 16242385, 32484770, 64969540]

約数ペア:

[(1, 64969540), (2, 32484770), (4, 16242385), (5, 12993908), (10, 6496954), (20, 3248477), (271, 239740), (542, 119870), (1084, 59935), (1355, 47948), (2710, 23974), (5420, 11987)]