80778815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1783}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 113291136

約数和(自身を除く): 32512321

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 533, 697, 1105, 1783, 2665, 3485, 8915, 9061, 23179, 30311, 45305, 73103, 115895, 151555, 365515, 394043, 950339, 1242751, 1970215, 4751695, 6213755, 16155763, 80778815]

約数ペア:

[(1, 80778815), (5, 16155763), (13, 6213755), (17, 4751695), (41, 1970215), (65, 1242751), (85, 950339), (205, 394043), (221, 365515), (533, 151555), (697, 115895), (1105, 73103), (1783, 45305), (2665, 30311), (3485, 23179), (8915, 9061)]