19959888935

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{206699}}^1$

素因数の和:206831

約数の個数: 32

約数和(自身を含む): 28574208000

約数和(自身を除く): 8614319065

約数列:

[1, 5, 7, 31, 35, 89, 155, 217, 445, 623, 1085, 2759, 3115, 13795, 19313, 96565, 206699, 1033495, 1446893, 6407669, 7234465, 18396211, 32038345, 44853683, 91981055, 128773477, 224268415, 570282541, 643867385, 2851412705, 3991977787, 19959888935]

約数ペア:

[(1, 19959888935), (5, 3991977787), (7, 2851412705), (31, 643867385), (35, 570282541), (89, 224268415), (155, 128773477), (217, 91981055), (445, 44853683), (623, 32038345), (1085, 18396211), (2759, 7234465), (3115, 6407669), (13795, 1446893), (19313, 1033495), (96565, 206699)]