9985580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45389}}^1$

素因数の和:45409

約数の個数: 24

約数和(自身を含む): 22876560

約数和(自身を除く): 12890980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 45389, 90778, 181556, 226945, 453890, 499279, 907780, 998558, 1997116, 2496395, 4992790, 9985580]

約数ペア:

[(1, 9985580), (2, 4992790), (4, 2496395), (5, 1997116), (10, 998558), (11, 907780), (20, 499279), (22, 453890), (44, 226945), (55, 181556), (110, 90778), (220, 45389)]