218282960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{389791}}^1$

素因数の和:389811

約数の個数: 40

約数和(自身を含む): 580010496

約数和(自身を除く): 361727536

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 389791, 779582, 1559164, 1948955, 2728537, 3118328, 3897910, 5457074, 6236656, 7795820, 10914148, 13642685, 15591640, 21828296, 27285370, 31183280, 43656592, 54570740, 109141480, 218282960]

約数ペア:

[(1, 218282960), (2, 109141480), (4, 54570740), (5, 43656592), (7, 31183280), (8, 27285370), (10, 21828296), (14, 15591640), (16, 13642685), (20, 10914148), (28, 7795820), (35, 6236656), (40, 5457074), (56, 3897910), (70, 3118328), (80, 2728537), (112, 1948955), (140, 1559164), (280, 779582), (560, 389791)]