31133980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17491}}^1$

素因数の和:17589

約数の個数: 24

約数和(自身を含む): 66119760

約数和(自身を除く): 34985780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 17491, 34982, 69964, 87455, 174910, 349820, 1556699, 3113398, 6226796, 7783495, 15566990, 31133980]

約数ペア:

[(1, 31133980), (2, 15566990), (4, 7783495), (5, 6226796), (10, 3113398), (20, 1556699), (89, 349820), (178, 174910), (356, 87455), (445, 69964), (890, 34982), (1780, 17491)]