2021160080

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181759}}^1$

素因数の和:181911

約数の個数: 40

約数和(自身を含む): 4733030400

約数和(自身を除く): 2711870320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 181759, 363518, 727036, 908795, 1454072, 1817590, 2908144, 3635180, 7270360, 14540720, 25264501, 50529002, 101058004, 126322505, 202116008, 252645010, 404232016, 505290020, 1010580040, 2021160080]

約数ペア:

[(1, 2021160080), (2, 1010580040), (4, 505290020), (5, 404232016), (8, 252645010), (10, 202116008), (16, 126322505), (20, 101058004), (40, 50529002), (80, 25264501), (139, 14540720), (278, 7270360), (556, 3635180), (695, 2908144), (1112, 1817590), (1390, 1454072), (2224, 908795), (2780, 727036), (5560, 363518), (11120, 181759)]