201566380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{647}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 436435776

約数和(自身を除く): 234869396

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 421, 647, 740, 842, 1294, 1684, 2105, 2588, 3235, 4210, 6470, 8420, 12940, 15577, 23939, 31154, 47878, 62308, 77885, 95756, 119695, 155770, 239390, 272387, 311540, 478780, 544774, 1089548, 1361935, 2723870, 5447740, 10078319, 20156638, 40313276, 50391595, 100783190, 201566380]

約数ペア:

[(1, 201566380), (2, 100783190), (4, 50391595), (5, 40313276), (10, 20156638), (20, 10078319), (37, 5447740), (74, 2723870), (148, 1361935), (185, 1089548), (370, 544774), (421, 478780), (647, 311540), (740, 272387), (842, 239390), (1294, 155770), (1684, 119695), (2105, 95756), (2588, 77885), (3235, 62308), (4210, 47878), (6470, 31154), (8420, 23939), (12940, 15577)]