639202208

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{281339}}^1$

素因数の和:281420

約数の個数: 24

約数和(自身を含む): 1276158240

約数和(自身を除く): 636956032

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 281339, 562678, 1125356, 2250712, 4501424, 9002848, 19975069, 39950138, 79900276, 159800552, 319601104, 639202208]

約数ペア:

[(1, 639202208), (2, 319601104), (4, 159800552), (8, 79900276), (16, 39950138), (32, 19975069), (71, 9002848), (142, 4501424), (284, 2250712), (568, 1125356), (1136, 562678), (2272, 281339)]