138220400

素因数分解:

$2^4\times 5^2\times {\mathrm{345551}}^1$

素因数の和:345569

約数の個数: 30

約数和(自身を含む): 332075472

約数和(自身を除く): 193855072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 345551, 691102, 1382204, 1727755, 2764408, 3455510, 5528816, 6911020, 8638775, 13822040, 17277550, 27644080, 34555100, 69110200, 138220400]

約数ペア:

[(1, 138220400), (2, 69110200), (4, 34555100), (5, 27644080), (8, 17277550), (10, 13822040), (16, 8638775), (20, 6911020), (25, 5528816), (40, 3455510), (50, 2764408), (80, 1727755), (100, 1382204), (200, 691102), (400, 345551)]