210282020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{808777}}^1$

素因数の和:808799

約数の個数: 24

約数和(自身を含む): 475561464

約数和(自身を除く): 265279444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 808777, 1617554, 3235108, 4043885, 8087770, 10514101, 16175540, 21028202, 42056404, 52570505, 105141010, 210282020]

約数ペア:

[(1, 210282020), (2, 105141010), (4, 52570505), (5, 42056404), (10, 21028202), (13, 16175540), (20, 10514101), (26, 8087770), (52, 4043885), (65, 3235108), (130, 1617554), (260, 808777)]