1900789025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{12841}}^1$

素因数の和:13073

約数の個数: 24

約数和(自身を含む): 2445938688

約数和(自身を除く): 545149663

約数列:

[1, 5, 25, 31, 155, 191, 775, 955, 4775, 5921, 12841, 29605, 64205, 148025, 321025, 398071, 1990355, 2452631, 9951775, 12263155, 61315775, 76031561, 380157805, 1900789025]

約数ペア:

[(1, 1900789025), (5, 380157805), (25, 76031561), (31, 61315775), (155, 12263155), (191, 9951775), (775, 2452631), (955, 1990355), (4775, 398071), (5921, 321025), (12841, 148025), (29605, 64205)]