90981779

素因数分解:

$7^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 111628800

約数和(自身を除く): 20647021

約数列:

[1, 7, 37, 49, 67, 107, 259, 343, 469, 749, 1813, 2479, 3283, 3959, 5243, 7169, 12691, 17353, 22981, 27713, 36701, 50183, 121471, 193991, 265253, 351281, 850297, 1357937, 1856771, 2458967, 12997397, 90981779]

約数ペア:

[(1, 90981779), (7, 12997397), (37, 2458967), (49, 1856771), (67, 1357937), (107, 850297), (259, 351281), (343, 265253), (469, 193991), (749, 121471), (1813, 50183), (2479, 36701), (3283, 27713), (3959, 22981), (5243, 17353), (7169, 12691)]