77320240

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8867}}^1$

素因数の和:8989

約数の個数: 40

約数和(自身を含む): 181439280

約数和(自身を除く): 104119040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 8867, 17734, 35468, 44335, 70936, 88670, 141872, 177340, 354680, 709360, 966503, 1933006, 3866012, 4832515, 7732024, 9665030, 15464048, 19330060, 38660120, 77320240]

約数ペア:

[(1, 77320240), (2, 38660120), (4, 19330060), (5, 15464048), (8, 9665030), (10, 7732024), (16, 4832515), (20, 3866012), (40, 1933006), (80, 966503), (109, 709360), (218, 354680), (436, 177340), (545, 141872), (872, 88670), (1090, 70936), (1744, 44335), (2180, 35468), (4360, 17734), (8720, 8867)]