128666879

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 153753600

約数和(自身を除く): 25086721

約数列:

[1, 11, 19, 43, 103, 139, 209, 473, 817, 1133, 1529, 1957, 2641, 4429, 5977, 8987, 14317, 21527, 29051, 48719, 65747, 84151, 113563, 157487, 272023, 615631, 925661, 1249193, 2992253, 6771941, 11696989, 128666879]

約数ペア:

[(1, 128666879), (11, 11696989), (19, 6771941), (43, 2992253), (103, 1249193), (139, 925661), (209, 615631), (473, 272023), (817, 157487), (1133, 113563), (1529, 84151), (1957, 65747), (2641, 48719), (4429, 29051), (5977, 21527), (8987, 14317)]