4045220

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{907}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 8542464

約数和(自身を除く): 4497244

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 907, 1115, 1814, 2230, 3628, 4460, 4535, 9070, 18140, 202261, 404522, 809044, 1011305, 2022610, 4045220]

約数ペア:

[(1, 4045220), (2, 2022610), (4, 1011305), (5, 809044), (10, 404522), (20, 202261), (223, 18140), (446, 9070), (892, 4535), (907, 4460), (1115, 3628), (1814, 2230)]