40643360

素因数分解:

$2^5\times 5^1\times {\mathrm{254021}}^1$

素因数の和:254036

約数の個数: 24

約数和(自身を含む): 96020316

約数和(自身を除く): 55376956

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 254021, 508042, 1016084, 1270105, 2032168, 2540210, 4064336, 5080420, 8128672, 10160840, 20321680, 40643360]

約数ペア:

[(1, 40643360), (2, 20321680), (4, 10160840), (5, 8128672), (8, 5080420), (10, 4064336), (16, 2540210), (20, 2032168), (32, 1270105), (40, 1016084), (80, 508042), (160, 254021)]