998770000

素因数分解:

$2^4\times 5^4\times {\mathrm{99877}}^1$

素因数の和:99905

約数の個数: 50

約数和(自身を含む): 2418146258

約数和(自身を除く): 1419376258

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 99877, 199754, 399508, 499385, 799016, 998770, 1598032, 1997540, 2496925, 3995080, 4993850, 7990160, 9987700, 12484625, 19975400, 24969250, 39950800, 49938500, 62423125, 99877000, 124846250, 199754000, 249692500, 499385000, 998770000]

約数ペア:

[(1, 998770000), (2, 499385000), (4, 249692500), (5, 199754000), (8, 124846250), (10, 99877000), (16, 62423125), (20, 49938500), (25, 39950800), (40, 24969250), (50, 19975400), (80, 12484625), (100, 9987700), (125, 7990160), (200, 4993850), (250, 3995080), (400, 2496925), (500, 1997540), (625, 1598032), (1000, 998770), (1250, 799016), (2000, 499385), (2500, 399508), (5000, 199754), (10000, 99877)]