5581420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21467}}^1$

素因数の和:21489

約数の個数: 24

約数和(自身を含む): 12623184

約数和(自身を除く): 7041764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 21467, 42934, 85868, 107335, 214670, 279071, 429340, 558142, 1116284, 1395355, 2790710, 5581420]

約数ペア:

[(1, 5581420), (2, 2790710), (4, 1395355), (5, 1116284), (10, 558142), (13, 429340), (20, 279071), (26, 214670), (52, 107335), (65, 85868), (130, 42934), (260, 21467)]