20781690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23887}}^1$

素因数の和:23926

約数の個数: 32

約数和(自身を含む): 51598080

約数和(自身を除く): 30816390

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 23887, 47774, 71661, 119435, 143322, 238870, 358305, 692723, 716610, 1385446, 2078169, 3463615, 4156338, 6927230, 10390845, 20781690]

約数ペア:

[(1, 20781690), (2, 10390845), (3, 6927230), (5, 4156338), (6, 3463615), (10, 2078169), (15, 1385446), (29, 716610), (30, 692723), (58, 358305), (87, 238870), (145, 143322), (174, 119435), (290, 71661), (435, 47774), (870, 23887)]