20605870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2287}}^1$

素因数の和:2364

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 19424978

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2287, 4505, 4574, 9010, 11435, 22870, 38879, 77758, 121211, 194395, 242422, 388790, 606055, 1212110, 2060587, 4121174, 10302935, 20605870]

約数ペア:

[(1, 20605870), (2, 10302935), (5, 4121174), (10, 2060587), (17, 1212110), (34, 606055), (53, 388790), (85, 242422), (106, 194395), (170, 121211), (265, 77758), (530, 38879), (901, 22870), (1802, 11435), (2287, 9010), (4505, 4574)]