64204790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37991}}^1$

素因数の和:38024

約数の個数: 24

約数和(自身を含む): 125145648

約数和(自身を除く): 60940858

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 37991, 75982, 189955, 379910, 493883, 987766, 2469415, 4938830, 6420479, 12840958, 32102395, 64204790]

約数ペア:

[(1, 64204790), (2, 32102395), (5, 12840958), (10, 6420479), (13, 4938830), (26, 2469415), (65, 987766), (130, 493883), (169, 379910), (338, 189955), (845, 75982), (1690, 37991)]