51662440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18191}}^1$

素因数の和:18273

約数の個数: 32

約数和(自身を含む): 117884160

約数和(自身を除く): 66221720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 18191, 36382, 72764, 90955, 145528, 181910, 363820, 727640, 1291561, 2583122, 5166244, 6457805, 10332488, 12915610, 25831220, 51662440]

約数ペア:

[(1, 51662440), (2, 25831220), (4, 12915610), (5, 10332488), (8, 6457805), (10, 5166244), (20, 2583122), (40, 1291561), (71, 727640), (142, 363820), (284, 181910), (355, 145528), (568, 90955), (710, 72764), (1420, 36382), (2840, 18191)]