20155900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3803}}^1$

素因数の和:3870

約数の個数: 36

約数和(自身を含む): 44575272

約数和(自身を除く): 24419372

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3803, 5300, 7606, 15212, 19015, 38030, 76060, 95075, 190150, 201559, 380300, 403118, 806236, 1007795, 2015590, 4031180, 5038975, 10077950, 20155900]

約数ペア:

[(1, 20155900), (2, 10077950), (4, 5038975), (5, 4031180), (10, 2015590), (20, 1007795), (25, 806236), (50, 403118), (53, 380300), (100, 201559), (106, 190150), (212, 95075), (265, 76060), (530, 38030), (1060, 19015), (1325, 15212), (2650, 7606), (3803, 5300)]