168750140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{649039}}^1$

素因数の和:649061

約数の個数: 24

約数和(自身を含む): 381635520

約数和(自身を除く): 212885380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 649039, 1298078, 2596156, 3245195, 6490390, 8437507, 12980780, 16875014, 33750028, 42187535, 84375070, 168750140]

約数ペア:

[(1, 168750140), (2, 84375070), (4, 42187535), (5, 33750028), (10, 16875014), (13, 12980780), (20, 8437507), (26, 6490390), (52, 3245195), (65, 2596156), (130, 1298078), (260, 649039)]