20551160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3863}}^1$

素因数の和:3900

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 35090440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3863, 5320, 7726, 15452, 19315, 27041, 30904, 38630, 54082, 73397, 77260, 108164, 135205, 146794, 154520, 216328, 270410, 293588, 366985, 513779, 540820, 587176, 733970, 1027558, 1081640, 1467940, 2055116, 2568895, 2935880, 4110232, 5137790, 10275580, 20551160]

約数ペア:

[(1, 20551160), (2, 10275580), (4, 5137790), (5, 4110232), (7, 2935880), (8, 2568895), (10, 2055116), (14, 1467940), (19, 1081640), (20, 1027558), (28, 733970), (35, 587176), (38, 540820), (40, 513779), (56, 366985), (70, 293588), (76, 270410), (95, 216328), (133, 154520), (140, 146794), (152, 135205), (190, 108164), (266, 77260), (280, 73397), (380, 54082), (532, 38630), (665, 30904), (760, 27041), (1064, 19315), (1330, 15452), (2660, 7726), (3863, 5320)]