19477480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44267}}^1$

素因数の和:44289

約数の個数: 32

約数和(自身を含む): 47809440

約数和(自身を除く): 28331960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44267, 88534, 177068, 221335, 354136, 442670, 486937, 885340, 973874, 1770680, 1947748, 2434685, 3895496, 4869370, 9738740, 19477480]

約数ペア:

[(1, 19477480), (2, 9738740), (4, 4869370), (5, 3895496), (8, 2434685), (10, 1947748), (11, 1770680), (20, 973874), (22, 885340), (40, 486937), (44, 442670), (55, 354136), (88, 221335), (110, 177068), (220, 88534), (440, 44267)]