213311540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{820429}}^1$

素因数の和:820451

約数の個数: 24

約数和(自身を含む): 482412840

約数和(自身を除く): 269101300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 820429, 1640858, 3281716, 4102145, 8204290, 10665577, 16408580, 21331154, 42662308, 53327885, 106655770, 213311540]

約数ペア:

[(1, 213311540), (2, 106655770), (4, 53327885), (5, 42662308), (10, 21331154), (13, 16408580), (20, 10665577), (26, 8204290), (52, 4102145), (65, 3281716), (130, 1640858), (260, 820429)]