25831220

素因数分解:

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

素因数の和:18271

約数の個数: 24

約数和(自身を含む): 55012608

約数和(自身を除く): 29181388

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18191, 36382, 72764, 90955, 181910, 363820, 1291561, 2583122, 5166244, 6457805, 12915610, 25831220]

約数ペア:

[(1, 25831220), (2, 12915610), (4, 6457805), (5, 5166244), (10, 2583122), (20, 1291561), (71, 363820), (142, 181910), (284, 90955), (355, 72764), (710, 36382), (1420, 18191)]