128791025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^2$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 184564080

約数和(自身を除く): 55773055

約数列:

[1, 5, 11, 19, 25, 55, 95, 157, 209, 275, 475, 785, 1045, 1727, 2983, 3925, 5225, 8635, 14915, 24649, 32813, 43175, 74575, 123245, 164065, 271139, 468331, 616225, 820325, 1355695, 2341655, 5151641, 6778475, 11708275, 25758205, 128791025]

約数ペア:

[(1, 128791025), (5, 25758205), (11, 11708275), (19, 6778475), (25, 5151641), (55, 2341655), (95, 1355695), (157, 820325), (209, 616225), (275, 468331), (475, 271139), (785, 164065), (1045, 123245), (1727, 74575), (2983, 43175), (3925, 32813), (5225, 24649), (8635, 14915)]