25479376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122497}}^1$

素因数の和:122518

約数の個数: 20

約数和(自身を含む): 53164132

約数和(自身を除く): 27684756

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122497, 244994, 489988, 979976, 1592461, 1959952, 3184922, 6369844, 12739688, 25479376]

約数ペア:

[(1, 25479376), (2, 12739688), (4, 6369844), (8, 3184922), (13, 1959952), (16, 1592461), (26, 979976), (52, 489988), (104, 244994), (208, 122497)]