19949075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 26592048

約数和(自身を除く): 6642973

約数列:

[1, 5, 17, 25, 73, 85, 365, 425, 643, 1241, 1825, 3215, 6205, 10931, 16075, 31025, 46939, 54655, 234695, 273275, 797963, 1173475, 3989815, 19949075]

約数ペア:

[(1, 19949075), (5, 3989815), (17, 1173475), (25, 797963), (73, 273275), (85, 234695), (365, 54655), (425, 46939), (643, 31025), (1241, 16075), (1825, 10931), (3215, 6205)]