278311540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1070429}}^1$

素因数の和:1070451

約数の個数: 24

約数和(自身を含む): 629412840

約数和(自身を除く): 351101300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1070429, 2140858, 4281716, 5352145, 10704290, 13915577, 21408580, 27831154, 55662308, 69577885, 139155770, 278311540]

約数ペア:

[(1, 278311540), (2, 139155770), (4, 69577885), (5, 55662308), (10, 27831154), (13, 21408580), (20, 13915577), (26, 10704290), (52, 5352145), (65, 4281716), (130, 2140858), (260, 1070429)]