646280

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 1477440

約数和(自身を除く): 831160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 151, 214, 302, 428, 535, 604, 755, 856, 1070, 1208, 1510, 2140, 3020, 4280, 6040, 16157, 32314, 64628, 80785, 129256, 161570, 323140, 646280]

約数ペア:

[(1, 646280), (2, 323140), (4, 161570), (5, 129256), (8, 80785), (10, 64628), (20, 32314), (40, 16157), (107, 6040), (151, 4280), (214, 3020), (302, 2140), (428, 1510), (535, 1208), (604, 1070), (755, 856)]