20226220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20639}}^1$

素因数の和:20662

約数の個数: 36

約数和(自身を含む): 49412160

約数和(自身を除く): 29185940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20639, 41278, 82556, 103195, 144473, 206390, 288946, 412780, 577892, 722365, 1011311, 1444730, 2022622, 2889460, 4045244, 5056555, 10113110, 20226220]

約数ペア:

[(1, 20226220), (2, 10113110), (4, 5056555), (5, 4045244), (7, 2889460), (10, 2022622), (14, 1444730), (20, 1011311), (28, 722365), (35, 577892), (49, 412780), (70, 288946), (98, 206390), (140, 144473), (196, 103195), (245, 82556), (490, 41278), (980, 20639)]