13008220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20981}}^1$

素因数の和:21021

約数の個数: 24

約数和(自身を含む): 28199808

約数和(自身を除く): 15191588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20981, 41962, 83924, 104905, 209810, 419620, 650411, 1300822, 2601644, 3252055, 6504110, 13008220]

約数ペア:

[(1, 13008220), (2, 6504110), (4, 3252055), (5, 2601644), (10, 1300822), (20, 650411), (31, 419620), (62, 209810), (124, 104905), (155, 83924), (310, 41962), (620, 20981)]