20865530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1723}}^1$

素因数の和:1910

約数の個数: 32

約数和(自身を含む): 43196544

約数和(自身を除く): 22331014

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 346, 865, 1211, 1723, 1730, 2422, 3446, 6055, 8615, 12061, 12110, 17230, 24122, 60305, 120610, 298079, 596158, 1490395, 2086553, 2980790, 4173106, 10432765, 20865530]

約数ペア:

[(1, 20865530), (2, 10432765), (5, 4173106), (7, 2980790), (10, 2086553), (14, 1490395), (35, 596158), (70, 298079), (173, 120610), (346, 60305), (865, 24122), (1211, 17230), (1723, 12110), (1730, 12061), (2422, 8615), (3446, 6055)]