1640471390

素因数分解:

$2^1\times 5^1\times {\mathrm{4229}}^1\times {\mathrm{38791}}^1$

素因数の和:43027

約数の個数: 16

約数和(自身を含む): 2953622880

約数和(自身を除く): 1313151490

約数列:

[1, 2, 5, 10, 4229, 8458, 21145, 38791, 42290, 77582, 193955, 387910, 164047139, 328094278, 820235695, 1640471390]

約数ペア:

[(1, 1640471390), (2, 820235695), (5, 328094278), (10, 164047139), (4229, 387910), (8458, 193955), (21145, 77582), (38791, 42290)]