440920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 1012320

約数和(自身を除く): 571400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 151, 292, 302, 365, 584, 604, 730, 755, 1208, 1460, 1510, 2920, 3020, 6040, 11023, 22046, 44092, 55115, 88184, 110230, 220460, 440920]

約数ペア:

[(1, 440920), (2, 220460), (4, 110230), (5, 88184), (8, 55115), (10, 44092), (20, 22046), (40, 11023), (73, 6040), (146, 3020), (151, 2920), (292, 1510), (302, 1460), (365, 1208), (584, 755), (604, 730)]