8687140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5641}}^1$

素因数の和:5668

約数の個数: 48

約数和(自身を含む): 22748544

約数和(自身を除く): 14061404

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5641, 11282, 22564, 28205, 39487, 56410, 62051, 78974, 112820, 124102, 157948, 197435, 248204, 310255, 394870, 434357, 620510, 789740, 868714, 1241020, 1737428, 2171785, 4343570, 8687140]

約数ペア:

[(1, 8687140), (2, 4343570), (4, 2171785), (5, 1737428), (7, 1241020), (10, 868714), (11, 789740), (14, 620510), (20, 434357), (22, 394870), (28, 310255), (35, 248204), (44, 197435), (55, 157948), (70, 124102), (77, 112820), (110, 78974), (140, 62051), (154, 56410), (220, 39487), (308, 28205), (385, 22564), (770, 11282), (1540, 5641)]