20045456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{283}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 41202720

約数和(自身を除く): 21157264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 233, 283, 304, 466, 566, 932, 1132, 1864, 2264, 3728, 4427, 4528, 5377, 8854, 10754, 17708, 21508, 35416, 43016, 65939, 70832, 86032, 131878, 263756, 527512, 1055024, 1252841, 2505682, 5011364, 10022728, 20045456]

約数ペア:

[(1, 20045456), (2, 10022728), (4, 5011364), (8, 2505682), (16, 1252841), (19, 1055024), (38, 527512), (76, 263756), (152, 131878), (233, 86032), (283, 70832), (304, 65939), (466, 43016), (566, 35416), (932, 21508), (1132, 17708), (1864, 10754), (2264, 8854), (3728, 5377), (4427, 4528)]