181532720

素因数分解:

$2^4\times 5^1\times {\mathrm{2269159}}^1$

素因数の和:2269172

約数の個数: 20

約数和(自身を含む): 422063760

約数和(自身を除く): 240531040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2269159, 4538318, 9076636, 11345795, 18153272, 22691590, 36306544, 45383180, 90766360, 181532720]

約数ペア:

[(1, 181532720), (2, 90766360), (4, 45383180), (5, 36306544), (8, 22691590), (10, 18153272), (16, 11345795), (20, 9076636), (40, 4538318), (80, 2269159)]