20194456

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 38782800

約数和(自身を除く): 18588344

約数列:

[1, 2, 4, 8, 89, 113, 178, 226, 251, 356, 452, 502, 712, 904, 1004, 2008, 10057, 20114, 22339, 28363, 40228, 44678, 56726, 80456, 89356, 113452, 178712, 226904, 2524307, 5048614, 10097228, 20194456]

約数ペア:

[(1, 20194456), (2, 10097228), (4, 5048614), (8, 2524307), (89, 226904), (113, 178712), (178, 113452), (226, 89356), (251, 80456), (356, 56726), (452, 44678), (502, 40228), (712, 28363), (904, 22339), (1004, 20114), (2008, 10057)]