8990200

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 21204000

約数和(自身を除く): 12213800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 569, 632, 790, 1138, 1580, 1975, 2276, 2845, 3160, 3950, 4552, 5690, 7900, 11380, 14225, 15800, 22760, 28450, 44951, 56900, 89902, 113800, 179804, 224755, 359608, 449510, 899020, 1123775, 1798040, 2247550, 4495100, 8990200]

約数ペア:

[(1, 8990200), (2, 4495100), (4, 2247550), (5, 1798040), (8, 1123775), (10, 899020), (20, 449510), (25, 359608), (40, 224755), (50, 179804), (79, 113800), (100, 89902), (158, 56900), (200, 44951), (316, 28450), (395, 22760), (569, 15800), (632, 14225), (790, 11380), (1138, 7900), (1580, 5690), (1975, 4552), (2276, 3950), (2845, 3160)]