18694360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11399}}^1$

素因数の和:11451

約数の個数: 32

約数和(自身を含む): 43092000

約数和(自身を除く): 24397640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11399, 22798, 45596, 56995, 91192, 113990, 227980, 455960, 467359, 934718, 1869436, 2336795, 3738872, 4673590, 9347180, 18694360]

約数ペア:

[(1, 18694360), (2, 9347180), (4, 4673590), (5, 3738872), (8, 2336795), (10, 1869436), (20, 934718), (40, 467359), (41, 455960), (82, 227980), (164, 113990), (205, 91192), (328, 56995), (410, 45596), (820, 22798), (1640, 11399)]