51005000

素因数分解:

$2^3\times 5^4\times {\mathrm{101}}^2$

素因数の和:228

約数の個数: 60

約数和(自身を含む): 120699645

約数和(自身を除く): 69694645

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 125, 200, 202, 250, 404, 500, 505, 625, 808, 1000, 1010, 1250, 2020, 2500, 2525, 4040, 5000, 5050, 10100, 10201, 12625, 20200, 20402, 25250, 40804, 50500, 51005, 63125, 81608, 101000, 102010, 126250, 204020, 252500, 255025, 408040, 505000, 510050, 1020100, 1275125, 2040200, 2550250, 5100500, 6375625, 10201000, 12751250, 25502500, 51005000]

約数ペア:

[(1, 51005000), (2, 25502500), (4, 12751250), (5, 10201000), (8, 6375625), (10, 5100500), (20, 2550250), (25, 2040200), (40, 1275125), (50, 1020100), (100, 510050), (101, 505000), (125, 408040), (200, 255025), (202, 252500), (250, 204020), (404, 126250), (500, 102010), (505, 101000), (625, 81608), (808, 63125), (1000, 51005), (1010, 50500), (1250, 40804), (2020, 25250), (2500, 20402), (2525, 20200), (4040, 12625), (5000, 10201), (5050, 10100)]