91991305

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 130076928

約数和(自身を除く): 38085623

約数列:

[1, 5, 7, 35, 53, 101, 265, 371, 491, 505, 707, 1855, 2455, 3437, 3535, 5353, 17185, 26023, 26765, 37471, 49591, 130115, 182161, 187355, 247955, 347137, 910805, 1735685, 2628323, 13141615, 18398261, 91991305]

約数ペア:

[(1, 91991305), (5, 18398261), (7, 13141615), (35, 2628323), (53, 1735685), (101, 910805), (265, 347137), (371, 247955), (491, 187355), (505, 182161), (707, 130115), (1855, 49591), (2455, 37471), (3437, 26765), (3535, 26023), (5353, 17185)]