8901220

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{719}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 18748800

約数和(自身を除く): 9847580

約数列:

[1, 2, 4, 5, 10, 20, 619, 719, 1238, 1438, 2476, 2876, 3095, 3595, 6190, 7190, 12380, 14380, 445061, 890122, 1780244, 2225305, 4450610, 8901220]

約数ペア:

[(1, 8901220), (2, 4450610), (4, 2225305), (5, 1780244), (10, 890122), (20, 445061), (619, 14380), (719, 12380), (1238, 7190), (1438, 6190), (2476, 3595), (2876, 3095)]