18571900

素因数分解:

$2^2\times 5^2\times {\mathrm{229}}^1\times {\mathrm{811}}^1$

素因数の和:1054

約数の個数: 36

約数和(自身を含む): 40526920

約数和(自身を除く): 21955020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 229, 458, 811, 916, 1145, 1622, 2290, 3244, 4055, 4580, 5725, 8110, 11450, 16220, 20275, 22900, 40550, 81100, 185719, 371438, 742876, 928595, 1857190, 3714380, 4642975, 9285950, 18571900]

約数ペア:

[(1, 18571900), (2, 9285950), (4, 4642975), (5, 3714380), (10, 1857190), (20, 928595), (25, 742876), (50, 371438), (100, 185719), (229, 81100), (458, 40550), (811, 22900), (916, 20275), (1145, 16220), (1622, 11450), (2290, 8110), (3244, 5725), (4055, 4580)]