125002000

素因数分解:

$2^4\times 5^3\times {\mathrm{62501}}^1$

素因数の和:62524

約数の個数: 40

約数和(自身を含む): 302259672

約数和(自身を除く): 177257672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 62501, 125002, 250004, 312505, 500008, 625010, 1000016, 1250020, 1562525, 2500040, 3125050, 5000080, 6250100, 7812625, 12500200, 15625250, 25000400, 31250500, 62501000, 125002000]

約数ペア:

[(1, 125002000), (2, 62501000), (4, 31250500), (5, 25000400), (8, 15625250), (10, 12500200), (16, 7812625), (20, 6250100), (25, 5000080), (40, 3125050), (50, 2500040), (80, 1562525), (100, 1250020), (125, 1000016), (200, 625010), (250, 500008), (400, 312505), (500, 250004), (1000, 125002), (2000, 62501)]