8420750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2591}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 16982784

約数和(自身を除く): 8562034

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 2591, 3250, 5182, 12955, 25910, 33683, 64775, 67366, 129550, 168415, 323875, 336830, 647750, 842075, 1684150, 4210375, 8420750]

約数ペア:

[(1, 8420750), (2, 4210375), (5, 1684150), (10, 842075), (13, 647750), (25, 336830), (26, 323875), (50, 168415), (65, 129550), (125, 67366), (130, 64775), (250, 33683), (325, 25910), (650, 12955), (1625, 5182), (2591, 3250)]