20125976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 20698024

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 431, 449, 862, 898, 1724, 1796, 3448, 3592, 5603, 5837, 11206, 11674, 22412, 23348, 44824, 46696, 193519, 387038, 774076, 1548152, 2515747, 5031494, 10062988, 20125976]

約数ペア:

[(1, 20125976), (2, 10062988), (4, 5031494), (8, 2515747), (13, 1548152), (26, 774076), (52, 387038), (104, 193519), (431, 46696), (449, 44824), (862, 23348), (898, 22412), (1724, 11674), (1796, 11206), (3448, 5837), (3592, 5603)]