1281582100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{312581}}^1$

素因数の和:312636

約数の個数: 36

約数和(自身を含む): 2848872348

約数和(自身を除く): 1567290248

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 312581, 625162, 1250324, 1562905, 3125810, 6251620, 7814525, 12815821, 15629050, 25631642, 31258100, 51263284, 64079105, 128158210, 256316420, 320395525, 640791050, 1281582100]

約数ペア:

[(1, 1281582100), (2, 640791050), (4, 320395525), (5, 256316420), (10, 128158210), (20, 64079105), (25, 51263284), (41, 31258100), (50, 25631642), (82, 15629050), (100, 12815821), (164, 7814525), (205, 6251620), (410, 3125810), (820, 1562905), (1025, 1250324), (2050, 625162), (4100, 312581)]