20804090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2309}}^1$

素因数の和:2386

約数の個数: 32

約数和(自身を含む): 40415760

約数和(自身を除く): 19611670

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2309, 4505, 4618, 9010, 11545, 23090, 39253, 78506, 122377, 196265, 244754, 392530, 611885, 1223770, 2080409, 4160818, 10402045, 20804090]

約数ペア:

[(1, 20804090), (2, 10402045), (5, 4160818), (10, 2080409), (17, 1223770), (34, 611885), (53, 392530), (85, 244754), (106, 196265), (170, 122377), (265, 78506), (530, 39253), (901, 23090), (1802, 11545), (2309, 9010), (4505, 4618)]