25185080

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{6491}}^1$

素因数の和:6599

約数の個数: 32

約数和(自身を含む): 57259440

約数和(自身を除く): 32074360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 6491, 12982, 25964, 32455, 51928, 64910, 129820, 259640, 629627, 1259254, 2518508, 3148135, 5037016, 6296270, 12592540, 25185080]

約数ペア:

[(1, 25185080), (2, 12592540), (4, 6296270), (5, 5037016), (8, 3148135), (10, 2518508), (20, 1259254), (40, 629627), (97, 259640), (194, 129820), (388, 64910), (485, 51928), (776, 32455), (970, 25964), (1940, 12982), (3880, 6491)]