20618140

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 44724960

約数和(自身を除く): 24106820

約数列:

[1, 2, 4, 5, 10, 20, 59, 101, 118, 173, 202, 236, 295, 346, 404, 505, 590, 692, 865, 1010, 1180, 1730, 2020, 3460, 5959, 10207, 11918, 17473, 20414, 23836, 29795, 34946, 40828, 51035, 59590, 69892, 87365, 102070, 119180, 174730, 204140, 349460, 1030907, 2061814, 4123628, 5154535, 10309070, 20618140]

約数ペア:

[(1, 20618140), (2, 10309070), (4, 5154535), (5, 4123628), (10, 2061814), (20, 1030907), (59, 349460), (101, 204140), (118, 174730), (173, 119180), (202, 102070), (236, 87365), (295, 69892), (346, 59590), (404, 51035), (505, 40828), (590, 34946), (692, 29795), (865, 23836), (1010, 20414), (1180, 17473), (1730, 11918), (2020, 10207), (3460, 5959)]