80854820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130411}}^1$

素因数の和:130451

約数の個数: 24

約数和(自身を含む): 175273728

約数和(自身を除く): 94418908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130411, 260822, 521644, 652055, 1304110, 2608220, 4042741, 8085482, 16170964, 20213705, 40427410, 80854820]

約数ペア:

[(1, 80854820), (2, 40427410), (4, 20213705), (5, 16170964), (10, 8085482), (20, 4042741), (31, 2608220), (62, 1304110), (124, 652055), (155, 521644), (310, 260822), (620, 130411)]