28977160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17669}}^1$

素因数の和:17721

約数の個数: 32

約数和(自身を含む): 66792600

約数和(自身を除く): 37815440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17669, 35338, 70676, 88345, 141352, 176690, 353380, 706760, 724429, 1448858, 2897716, 3622145, 5795432, 7244290, 14488580, 28977160]

約数ペア:

[(1, 28977160), (2, 14488580), (4, 7244290), (5, 5795432), (8, 3622145), (10, 2897716), (20, 1448858), (40, 724429), (41, 706760), (82, 353380), (164, 176690), (205, 141352), (328, 88345), (410, 70676), (820, 35338), (1640, 17669)]