25683220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31321}}^1$

素因数の和:31371

約数の個数: 24

約数和(自身を含む): 55252008

約数和(自身を除く): 29568788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31321, 62642, 125284, 156605, 313210, 626420, 1284161, 2568322, 5136644, 6420805, 12841610, 25683220]

約数ペア:

[(1, 25683220), (2, 12841610), (4, 6420805), (5, 5136644), (10, 2568322), (20, 1284161), (41, 626420), (82, 313210), (164, 156605), (205, 125284), (410, 62642), (820, 31321)]