31191508990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{72538393}}^1$

素因数の和:72538443

約数の個数: 16

約数和(自身を含む): 57450408048

約数和(自身を除く): 26258899058

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 72538393, 145076786, 362691965, 725383930, 3119150899, 6238301798, 15595754495, 31191508990]

約数ペア:

[(1, 31191508990), (2, 15595754495), (5, 6238301798), (10, 3119150899), (43, 725383930), (86, 362691965), (215, 145076786), (430, 72538393)]