2020077520

素因数分解:

$2^4\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{11783}}^1$

素因数の和:13939

約数の個数: 40

約数和(自身を含む): 4699270656

約数和(自身を除く): 2679193136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2143, 4286, 8572, 10715, 11783, 17144, 21430, 23566, 34288, 42860, 47132, 58915, 85720, 94264, 117830, 171440, 188528, 235660, 471320, 942640, 25250969, 50501938, 101003876, 126254845, 202007752, 252509690, 404015504, 505019380, 1010038760, 2020077520]

約数ペア:

[(1, 2020077520), (2, 1010038760), (4, 505019380), (5, 404015504), (8, 252509690), (10, 202007752), (16, 126254845), (20, 101003876), (40, 50501938), (80, 25250969), (2143, 942640), (4286, 471320), (8572, 235660), (10715, 188528), (11783, 171440), (17144, 117830), (21430, 94264), (23566, 85720), (34288, 58915), (42860, 47132)]