4260440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 9812880

約数和(自身を除く): 5552440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2477, 4954, 9908, 12385, 19816, 24770, 49540, 99080, 106511, 213022, 426044, 532555, 852088, 1065110, 2130220, 4260440]

約数ペア:

[(1, 4260440), (2, 2130220), (4, 1065110), (5, 852088), (8, 532555), (10, 426044), (20, 213022), (40, 106511), (43, 99080), (86, 49540), (172, 24770), (215, 19816), (344, 12385), (430, 9908), (860, 4954), (1720, 2477)]