205648310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{19717}}^1$

素因数の和:19880

約数の個数: 32

約数和(自身を含む): 425908800

約数和(自身を除く): 220260490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2086, 5215, 10430, 19717, 39434, 98585, 138019, 197170, 276038, 690095, 1380190, 2937833, 5875666, 14689165, 20564831, 29378330, 41129662, 102824155, 205648310]

約数ペア:

[(1, 205648310), (2, 102824155), (5, 41129662), (7, 29378330), (10, 20564831), (14, 14689165), (35, 5875666), (70, 2937833), (149, 1380190), (298, 690095), (745, 276038), (1043, 197170), (1490, 138019), (2086, 98585), (5215, 39434), (10430, 19717)]