428840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 984960

約数和(自身を除く): 556120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 151, 284, 302, 355, 568, 604, 710, 755, 1208, 1420, 1510, 2840, 3020, 6040, 10721, 21442, 42884, 53605, 85768, 107210, 214420, 428840]

約数ペア:

[(1, 428840), (2, 214420), (4, 107210), (5, 85768), (8, 53605), (10, 42884), (20, 21442), (40, 10721), (71, 6040), (142, 3020), (151, 2840), (284, 1510), (302, 1420), (355, 1208), (568, 755), (604, 710)]