100728640

素因数分解:

$2^6\times 5^1\times {\mathrm{314777}}^1$

素因数の和:314794

約数の個数: 28

約数和(自身を含む): 239860836

約数和(自身を除く): 139132196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 314777, 629554, 1259108, 1573885, 2518216, 3147770, 5036432, 6295540, 10072864, 12591080, 20145728, 25182160, 50364320, 100728640]

約数ペア:

[(1, 100728640), (2, 50364320), (4, 25182160), (5, 20145728), (8, 12591080), (10, 10072864), (16, 6295540), (20, 5036432), (32, 3147770), (40, 2518216), (64, 1573885), (80, 1259108), (160, 629554), (320, 314777)]