215690000

素因数分解:

$2^4\times 5^4\times {\mathrm{21569}}^1$

素因数の和:21597

約数の個数: 50

約数和(自身を含む): 522231270

約数和(自身を除く): 306541270

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, 21569, 43138, 86276, 107845, 172552, 215690, 345104, 431380, 539225, 862760, 1078450, 1725520, 2156900, 2696125, 4313800, 5392250, 8627600, 10784500, 13480625, 21569000, 26961250, 43138000, 53922500, 107845000, 215690000]

約数ペア:

[(1, 215690000), (2, 107845000), (4, 53922500), (5, 43138000), (8, 26961250), (10, 21569000), (16, 13480625), (20, 10784500), (25, 8627600), (40, 5392250), (50, 4313800), (80, 2696125), (100, 2156900), (125, 1725520), (200, 1078450), (250, 862760), (400, 539225), (500, 431380), (625, 345104), (1000, 215690), (1250, 172552), (2000, 107845), (2500, 86276), (5000, 43138), (10000, 21569)]