261648020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{769553}}^1$

素因数の和:769579

約数の個数: 24

約数和(自身を含む): 581782824

約数和(自身を除く): 320134804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 769553, 1539106, 3078212, 3847765, 7695530, 13082401, 15391060, 26164802, 52329604, 65412005, 130824010, 261648020]

約数ペア:

[(1, 261648020), (2, 130824010), (4, 65412005), (5, 52329604), (10, 26164802), (17, 15391060), (20, 13082401), (34, 7695530), (68, 3847765), (85, 3078212), (170, 1539106), (340, 769553)]