408083240

素因数分解:

$2^3\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{4721}}^1$

素因数の和:6893

約数の個数: 32

約数和(自身を含む): 918806760

約数和(自身を除く): 510723520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2161, 4322, 4721, 8644, 9442, 10805, 17288, 18884, 21610, 23605, 37768, 43220, 47210, 86440, 94420, 188840, 10202081, 20404162, 40808324, 51010405, 81616648, 102020810, 204041620, 408083240]

約数ペア:

[(1, 408083240), (2, 204041620), (4, 102020810), (5, 81616648), (8, 51010405), (10, 40808324), (20, 20404162), (40, 10202081), (2161, 188840), (4322, 94420), (4721, 86440), (8644, 47210), (9442, 43220), (10805, 37768), (17288, 23605), (18884, 21610)]