256468135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{4243}}^1$

素因数の和:4423

約数の個数: 32

約数和(自身を含む): 386237952

約数和(自身を除く): 129769817

約数列:

[1, 5, 7, 11, 35, 55, 77, 157, 385, 785, 1099, 1727, 4243, 5495, 8635, 12089, 21215, 29701, 46673, 60445, 148505, 233365, 326711, 666151, 1633555, 3330755, 4663057, 7327661, 23315285, 36638305, 51293627, 256468135]

約数ペア:

[(1, 256468135), (5, 51293627), (7, 36638305), (11, 23315285), (35, 7327661), (55, 4663057), (77, 3330755), (157, 1633555), (385, 666151), (785, 326711), (1099, 233365), (1727, 148505), (4243, 60445), (5495, 46673), (8635, 29701), (12089, 21215)]