87185420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1553}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 209901888

約数和(自身を除く): 122716468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 802, 1553, 1604, 2005, 2807, 3106, 4010, 5614, 6212, 7765, 8020, 10871, 11228, 14035, 15530, 21742, 28070, 31060, 43484, 54355, 56140, 108710, 217420, 622753, 1245506, 2491012, 3113765, 4359271, 6227530, 8718542, 12455060, 17437084, 21796355, 43592710, 87185420]

約数ペア:

[(1, 87185420), (2, 43592710), (4, 21796355), (5, 17437084), (7, 12455060), (10, 8718542), (14, 6227530), (20, 4359271), (28, 3113765), (35, 2491012), (70, 1245506), (140, 622753), (401, 217420), (802, 108710), (1553, 56140), (1604, 54355), (2005, 43484), (2807, 31060), (3106, 28070), (4010, 21742), (5614, 15530), (6212, 14035), (7765, 11228), (8020, 10871)]