90978820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{22859}}^1$

素因数の和:23067

約数の個数: 24

約数和(自身を含む): 192024000

約数和(自身を除く): 101045180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 22859, 45718, 91436, 114295, 228590, 457180, 4548941, 9097882, 18195764, 22744705, 45489410, 90978820]

約数ペア:

[(1, 90978820), (2, 45489410), (4, 22744705), (5, 18195764), (10, 9097882), (20, 4548941), (199, 457180), (398, 228590), (796, 114295), (995, 91436), (1990, 45718), (3980, 22859)]