51222340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197009}}^1$

素因数の和:197031

約数の個数: 24

約数和(自身を含む): 115841880

約数和(自身を除く): 64619540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197009, 394018, 788036, 985045, 1970090, 2561117, 3940180, 5122234, 10244468, 12805585, 25611170, 51222340]

約数ペア:

[(1, 51222340), (2, 25611170), (4, 12805585), (5, 10244468), (10, 5122234), (13, 3940180), (20, 2561117), (26, 1970090), (52, 985045), (65, 788036), (130, 394018), (260, 197009)]