66882140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257239}}^1$

素因数の和:257261

約数の個数: 24

約数和(自身を含む): 151257120

約数和(自身を除く): 84374980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257239, 514478, 1028956, 1286195, 2572390, 3344107, 5144780, 6688214, 13376428, 16720535, 33441070, 66882140]

約数ペア:

[(1, 66882140), (2, 33441070), (4, 16720535), (5, 13376428), (10, 6688214), (13, 5144780), (20, 3344107), (26, 2572390), (52, 1286195), (65, 1028956), (130, 514478), (260, 257239)]