28198360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9929}}^1$

素因数の和:10011

約数の個数: 32

約数和(自身を含む): 64346400

約数和(自身を除く): 36148040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9929, 19858, 39716, 49645, 79432, 99290, 198580, 397160, 704959, 1409918, 2819836, 3524795, 5639672, 7049590, 14099180, 28198360]

約数ペア:

[(1, 28198360), (2, 14099180), (4, 7049590), (5, 5639672), (8, 3524795), (10, 2819836), (20, 1409918), (40, 704959), (71, 397160), (142, 198580), (284, 99290), (355, 79432), (568, 49645), (710, 39716), (1420, 19858), (2840, 9929)]