128183320

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{4457}}^1$

素因数の和:5187

約数の個数: 32

約数和(自身を含む): 288878400

約数和(自身を除く): 160695080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 4457, 5752, 7190, 8914, 14380, 17828, 22285, 28760, 35656, 44570, 89140, 178280, 3204583, 6409166, 12818332, 16022915, 25636664, 32045830, 64091660, 128183320]

約数ペア:

[(1, 128183320), (2, 64091660), (4, 32045830), (5, 25636664), (8, 16022915), (10, 12818332), (20, 6409166), (40, 3204583), (719, 178280), (1438, 89140), (2876, 44570), (3595, 35656), (4457, 28760), (5752, 22285), (7190, 17828), (8914, 14380)]