217390840

素因数分解:

$2^3\times 5^1\times {\mathrm{5434771}}^1$

素因数の和:5434782

約数の個数: 16

約数和(自身を含む): 489129480

約数和(自身を除く): 271738640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5434771, 10869542, 21739084, 27173855, 43478168, 54347710, 108695420, 217390840]

約数ペア:

[(1, 217390840), (2, 108695420), (4, 54347710), (5, 43478168), (8, 27173855), (10, 21739084), (20, 10869542), (40, 5434771)]