821520830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{6659}}^1$

素因数の和:6765

約数の個数: 48

約数和(自身を含む): 1623414960

約数和(自身を除く): 801894130

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 169, 338, 365, 730, 845, 949, 1690, 1898, 4745, 6659, 9490, 12337, 13318, 24674, 33295, 61685, 66590, 86567, 123370, 173134, 432835, 486107, 865670, 972214, 1125371, 2250742, 2430535, 4861070, 5626855, 6319391, 11253710, 12638782, 31596955, 63193910, 82152083, 164304166, 410760415, 821520830]

約数ペア:

[(1, 821520830), (2, 410760415), (5, 164304166), (10, 82152083), (13, 63193910), (26, 31596955), (65, 12638782), (73, 11253710), (130, 6319391), (146, 5626855), (169, 4861070), (338, 2430535), (365, 2250742), (730, 1125371), (845, 972214), (949, 865670), (1690, 486107), (1898, 432835), (4745, 173134), (6659, 123370), (9490, 86567), (12337, 66590), (13318, 61685), (24674, 33295)]