19443040

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{887}}^1$

素因数の和:1039

約数の個数: 48

約数和(自身を含む): 46321632

約数和(自身を除く): 26878592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 887, 1096, 1370, 1774, 2192, 2740, 3548, 4384, 4435, 5480, 7096, 8870, 10960, 14192, 17740, 21920, 28384, 35480, 70960, 121519, 141920, 243038, 486076, 607595, 972152, 1215190, 1944304, 2430380, 3888608, 4860760, 9721520, 19443040]

約数ペア:

[(1, 19443040), (2, 9721520), (4, 4860760), (5, 3888608), (8, 2430380), (10, 1944304), (16, 1215190), (20, 972152), (32, 607595), (40, 486076), (80, 243038), (137, 141920), (160, 121519), (274, 70960), (548, 35480), (685, 28384), (887, 21920), (1096, 17740), (1370, 14192), (1774, 10960), (2192, 8870), (2740, 7096), (3548, 5480), (4384, 4435)]