90834520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{809}}^1$

素因数の和:1228

約数の個数: 64

約数和(自身を含む): 234446400

約数和(自身を除く): 143611880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 401, 802, 809, 1604, 1618, 2005, 2807, 3208, 3236, 4010, 4045, 5614, 5663, 6472, 8020, 8090, 11228, 11326, 14035, 16040, 16180, 22456, 22652, 28070, 28315, 32360, 45304, 56140, 56630, 112280, 113260, 226520, 324409, 648818, 1297636, 1622045, 2270863, 2595272, 3244090, 4541726, 6488180, 9083452, 11354315, 12976360, 18166904, 22708630, 45417260, 90834520]

約数ペア:

[(1, 90834520), (2, 45417260), (4, 22708630), (5, 18166904), (7, 12976360), (8, 11354315), (10, 9083452), (14, 6488180), (20, 4541726), (28, 3244090), (35, 2595272), (40, 2270863), (56, 1622045), (70, 1297636), (140, 648818), (280, 324409), (401, 226520), (802, 113260), (809, 112280), (1604, 56630), (1618, 56140), (2005, 45304), (2807, 32360), (3208, 28315), (3236, 28070), (4010, 22652), (4045, 22456), (5614, 16180), (5663, 16040), (6472, 14035), (8020, 11326), (8090, 11228)]