39151990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{43991}}^1$

素因数の和:44087

約数の個数: 16

約数和(自身を含む): 71267040

約数和(自身を除く): 32115050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 43991, 87982, 219955, 439910, 3915199, 7830398, 19575995, 39151990]

約数ペア:

[(1, 39151990), (2, 19575995), (5, 7830398), (10, 3915199), (89, 439910), (178, 219955), (445, 87982), (890, 43991)]