31400090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{35281}}^1$

素因数の和:35377

約数の個数: 16

約数和(自身を含む): 57156840

約数和(自身を除く): 25756750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 35281, 70562, 176405, 352810, 3140009, 6280018, 15700045, 31400090]

約数ペア:

[(1, 31400090), (2, 15700045), (5, 6280018), (10, 3140009), (89, 352810), (178, 176405), (445, 70562), (890, 35281)]