18138100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5851}}^1$

素因数の和:5896

約数の個数: 36

約数和(自身を含む): 40636288

約数和(自身を除く): 22498188

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 5851, 11702, 23404, 29255, 58510, 117020, 146275, 181381, 292550, 362762, 585100, 725524, 906905, 1813810, 3627620, 4534525, 9069050, 18138100]

約数ペア:

[(1, 18138100), (2, 9069050), (4, 4534525), (5, 3627620), (10, 1813810), (20, 906905), (25, 725524), (31, 585100), (50, 362762), (62, 292550), (100, 181381), (124, 146275), (155, 117020), (310, 58510), (620, 29255), (775, 23404), (1550, 11702), (3100, 5851)]