12894951640

素因数分解:

$2^3\times 5^1\times {\mathrm{322373791}}^1$

素因数の和:322373802

約数の個数: 16

約数和(自身を含む): 29013641280

約数和(自身を除く): 16118689640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 322373791, 644747582, 1289495164, 1611868955, 2578990328, 3223737910, 6447475820, 12894951640]

約数ペア:

[(1, 12894951640), (2, 6447475820), (4, 3223737910), (5, 2578990328), (8, 1611868955), (10, 1289495164), (20, 644747582), (40, 322373791)]