87820160

素因数分解:

$2^7\times 5^1\times {\mathrm{137219}}^1$

素因数の和:137238

約数の個数: 32

約数和(自身を含む): 209946600

約数和(自身を除く): 122126440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 137219, 274438, 548876, 686095, 1097752, 1372190, 2195504, 2744380, 4391008, 5488760, 8782016, 10977520, 17564032, 21955040, 43910080, 87820160]

約数ペア:

[(1, 87820160), (2, 43910080), (4, 21955040), (5, 17564032), (8, 10977520), (10, 8782016), (16, 5488760), (20, 4391008), (32, 2744380), (40, 2195504), (64, 1372190), (80, 1097752), (128, 686095), (160, 548876), (320, 274438), (640, 137219)]