258603740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{145283}}^1$

素因数の和:145381

約数の個数: 24

約数和(自身を含む): 549173520

約数和(自身を除く): 290569780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 145283, 290566, 581132, 726415, 1452830, 2905660, 12930187, 25860374, 51720748, 64650935, 129301870, 258603740]

約数ペア:

[(1, 258603740), (2, 129301870), (4, 64650935), (5, 51720748), (10, 25860374), (20, 12930187), (89, 2905660), (178, 1452830), (356, 726415), (445, 581132), (890, 290566), (1780, 145283)]