78905020

素因数分解:

$2^2\times 5^1\times {\mathrm{1193}}^1\times {\mathrm{3307}}^1$

素因数の和:4509

約数の個数: 24

約数和(自身を含む): 165889584

約数和(自身を除く): 86984564

約数列:

[1, 2, 4, 5, 10, 20, 1193, 2386, 3307, 4772, 5965, 6614, 11930, 13228, 16535, 23860, 33070, 66140, 3945251, 7890502, 15781004, 19726255, 39452510, 78905020]

約数ペア:

[(1, 78905020), (2, 39452510), (4, 19726255), (5, 15781004), (10, 7890502), (20, 3945251), (1193, 66140), (2386, 33070), (3307, 23860), (4772, 16535), (5965, 13228), (6614, 11930)]