20325292

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 39014136

約数和(自身を除く): 18688844

約数列:

[1, 2, 4, 13, 26, 52, 107, 169, 214, 281, 338, 428, 562, 676, 1124, 1391, 2782, 3653, 5564, 7306, 14612, 18083, 30067, 36166, 47489, 60134, 72332, 94978, 120268, 189956, 390871, 781742, 1563484, 5081323, 10162646, 20325292]

約数ペア:

[(1, 20325292), (2, 10162646), (4, 5081323), (13, 1563484), (26, 781742), (52, 390871), (107, 189956), (169, 120268), (214, 94978), (281, 72332), (338, 60134), (428, 47489), (562, 36166), (676, 30067), (1124, 18083), (1391, 14612), (2782, 7306), (3653, 5564)]