489248840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{284447}}^1$

素因数の和:284501

約数の個数: 32

約数和(自身を含む): 1126414080

約数和(自身を除く): 637165240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 284447, 568894, 1137788, 1422235, 2275576, 2844470, 5688940, 11377880, 12231221, 24462442, 48924884, 61156105, 97849768, 122312210, 244624420, 489248840]

約数ペア:

[(1, 489248840), (2, 244624420), (4, 122312210), (5, 97849768), (8, 61156105), (10, 48924884), (20, 24462442), (40, 12231221), (43, 11377880), (86, 5688940), (172, 2844470), (215, 2275576), (344, 1422235), (430, 1137788), (860, 568894), (1720, 284447)]