68643380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264013}}^1$

素因数の和:264035

約数の個数: 24

約数和(自身を含む): 155240232

約数和(自身を除く): 86596852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264013, 528026, 1056052, 1320065, 2640130, 3432169, 5280260, 6864338, 13728676, 17160845, 34321690, 68643380]

約数ペア:

[(1, 68643380), (2, 34321690), (4, 17160845), (5, 13728676), (10, 6864338), (13, 5280260), (20, 3432169), (26, 2640130), (52, 1320065), (65, 1056052), (130, 528026), (260, 264013)]