8509248400

素因数分解:

$2^4\times 5^2\times {\mathrm{21273121}}^1$

素因数の和:21273139

約数の個数: 30

約数和(自身を含む): 20443470242

約数和(自身を除く): 11934221842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 21273121, 42546242, 85092484, 106365605, 170184968, 212731210, 340369936, 425462420, 531828025, 850924840, 1063656050, 1701849680, 2127312100, 4254624200, 8509248400]

約数ペア:

[(1, 8509248400), (2, 4254624200), (4, 2127312100), (5, 1701849680), (8, 1063656050), (10, 850924840), (16, 531828025), (20, 425462420), (25, 340369936), (40, 212731210), (50, 170184968), (80, 106365605), (100, 85092484), (200, 42546242), (400, 21273121)]