81631040

素因数分解:

$2^6\times 5^1\times {\mathrm{255097}}^1$

素因数の和:255114

約数の個数: 28

約数和(自身を含む): 194384676

約数和(自身を除く): 112753636

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 255097, 510194, 1020388, 1275485, 2040776, 2550970, 4081552, 5101940, 8163104, 10203880, 16326208, 20407760, 40815520, 81631040]

約数ペア:

[(1, 81631040), (2, 40815520), (4, 20407760), (5, 16326208), (8, 10203880), (10, 8163104), (16, 5101940), (20, 4081552), (32, 2550970), (40, 2040776), (64, 1275485), (80, 1020388), (160, 510194), (320, 255097)]