68802920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{41953}}^1$

素因数の和:42005

約数の個数: 32

約数和(自身を含む): 158586120

約数和(自身を除く): 89783200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 41953, 83906, 167812, 209765, 335624, 419530, 839060, 1678120, 1720073, 3440146, 6880292, 8600365, 13760584, 17200730, 34401460, 68802920]

約数ペア:

[(1, 68802920), (2, 34401460), (4, 17200730), (5, 13760584), (8, 8600365), (10, 6880292), (20, 3440146), (40, 1720073), (41, 1678120), (82, 839060), (164, 419530), (205, 335624), (328, 209765), (410, 167812), (820, 83906), (1640, 41953)]