28450000

素因数分解:

$2^4\times 5^5\times {\mathrm{569}}^1$

素因数の和:602

約数の個数: 60

約数和(自身を含む): 69019020

約数和(自身を除く): 40569020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 569, 625, 1000, 1138, 1250, 2000, 2276, 2500, 2845, 3125, 4552, 5000, 5690, 6250, 9104, 10000, 11380, 12500, 14225, 22760, 25000, 28450, 45520, 50000, 56900, 71125, 113800, 142250, 227600, 284500, 355625, 569000, 711250, 1138000, 1422500, 1778125, 2845000, 3556250, 5690000, 7112500, 14225000, 28450000]

約数ペア:

[(1, 28450000), (2, 14225000), (4, 7112500), (5, 5690000), (8, 3556250), (10, 2845000), (16, 1778125), (20, 1422500), (25, 1138000), (40, 711250), (50, 569000), (80, 355625), (100, 284500), (125, 227600), (200, 142250), (250, 113800), (400, 71125), (500, 56900), (569, 50000), (625, 45520), (1000, 28450), (1138, 25000), (1250, 22760), (2000, 14225), (2276, 12500), (2500, 11380), (2845, 10000), (3125, 9104), (4552, 6250), (5000, 5690)]