81526040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49711}}^1$

素因数の和:49763

約数の個数: 32

約数和(自身を含む): 187911360

約数和(自身を除く): 106385320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 49711, 99422, 198844, 248555, 397688, 497110, 994220, 1988440, 2038151, 4076302, 8152604, 10190755, 16305208, 20381510, 40763020, 81526040]

約数ペア:

[(1, 81526040), (2, 40763020), (4, 20381510), (5, 16305208), (8, 10190755), (10, 8152604), (20, 4076302), (40, 2038151), (41, 1988440), (82, 994220), (164, 497110), (205, 397688), (328, 248555), (410, 198844), (820, 99422), (1640, 49711)]