386217680

素因数分解:

$2^4\times 5^1\times {\mathrm{4827721}}^1$

素因数の和:4827734

約数の個数: 20

約数和(自身を含む): 897956292

約数和(自身を除く): 511738612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4827721, 9655442, 19310884, 24138605, 38621768, 48277210, 77243536, 96554420, 193108840, 386217680]

約数ペア:

[(1, 386217680), (2, 193108840), (4, 96554420), (5, 77243536), (8, 48277210), (10, 38621768), (16, 24138605), (20, 19310884), (40, 9655442), (80, 4827721)]