128455516

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{29221}}^1$

素因数の和:29389

約数の個数: 24

約数和(自身を含む): 258556256

約数和(自身を除く): 130100740

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 29221, 58442, 116884, 204547, 409094, 818188, 4587697, 9175394, 18350788, 32113879, 64227758, 128455516]

約数ペア:

[(1, 128455516), (2, 64227758), (4, 32113879), (7, 18350788), (14, 9175394), (28, 4587697), (157, 818188), (314, 409094), (628, 204547), (1099, 116884), (2198, 58442), (4396, 29221)]