201002000

素因数分解:

$2^4\times 5^3\times {\mathrm{100501}}^1$

素因数の和:100524

約数の個数: 40

約数和(自身を含む): 486027672

約数和(自身を除く): 285025672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 100501, 201002, 402004, 502505, 804008, 1005010, 1608016, 2010020, 2512525, 4020040, 5025050, 8040080, 10050100, 12562625, 20100200, 25125250, 40200400, 50250500, 100501000, 201002000]

約数ペア:

[(1, 201002000), (2, 100501000), (4, 50250500), (5, 40200400), (8, 25125250), (10, 20100200), (16, 12562625), (20, 10050100), (25, 8040080), (40, 5025050), (50, 4020040), (80, 2512525), (100, 2010020), (125, 1608016), (200, 1005010), (250, 804008), (400, 502505), (500, 402004), (1000, 201002), (2000, 100501)]