208598195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 277167744

約数和(自身を除く): 68569549

約数列:

[1, 5, 13, 53, 65, 151, 265, 401, 689, 755, 1963, 2005, 3445, 5213, 8003, 9815, 21253, 26065, 40015, 60551, 104039, 106265, 276289, 302755, 520195, 787163, 1381445, 3209203, 3935815, 16046015, 41719639, 208598195]

約数ペア:

[(1, 208598195), (5, 41719639), (13, 16046015), (53, 3935815), (65, 3209203), (151, 1381445), (265, 787163), (401, 520195), (689, 302755), (755, 276289), (1963, 106265), (2005, 104039), (3445, 60551), (5213, 40015), (8003, 26065), (9815, 21253)]