16989320

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1217}}^1$

素因数の和:1577

約数の個数: 32

約数和(自身を含む): 38367000

約数和(自身を除く): 21377680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1217, 1396, 1745, 2434, 2792, 3490, 4868, 6085, 6980, 9736, 12170, 13960, 24340, 48680, 424733, 849466, 1698932, 2123665, 3397864, 4247330, 8494660, 16989320]

約数ペア:

[(1, 16989320), (2, 8494660), (4, 4247330), (5, 3397864), (8, 2123665), (10, 1698932), (20, 849466), (40, 424733), (349, 48680), (698, 24340), (1217, 13960), (1396, 12170), (1745, 9736), (2434, 6980), (2792, 6085), (3490, 4868)]