20385100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10729}}^1$

素因数の和:10762

約数の個数: 36

約数和(自身を含む): 46568200

約数和(自身を除く): 26183100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10729, 21458, 42916, 53645, 107290, 203851, 214580, 268225, 407702, 536450, 815404, 1019255, 1072900, 2038510, 4077020, 5096275, 10192550, 20385100]

約数ペア:

[(1, 20385100), (2, 10192550), (4, 5096275), (5, 4077020), (10, 2038510), (19, 1072900), (20, 1019255), (25, 815404), (38, 536450), (50, 407702), (76, 268225), (95, 214580), (100, 203851), (190, 107290), (380, 53645), (475, 42916), (950, 21458), (1900, 10729)]