81231570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{128939}}^1$

素因数の和:128959

約数の個数: 48

約数和(自身を含む): 241375680

約数和(自身を除く): 160144110

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 128939, 257878, 386817, 644695, 773634, 902573, 1160451, 1289390, 1805146, 1934085, 2320902, 2707719, 3868170, 4512865, 5415438, 5802255, 8123157, 9025730, 11604510, 13538595, 16246314, 27077190, 40615785, 81231570]

約数ペア:

[(1, 81231570), (2, 40615785), (3, 27077190), (5, 16246314), (6, 13538595), (7, 11604510), (9, 9025730), (10, 8123157), (14, 5802255), (15, 5415438), (18, 4512865), (21, 3868170), (30, 2707719), (35, 2320902), (42, 1934085), (45, 1805146), (63, 1289390), (70, 1160451), (90, 902573), (105, 773634), (126, 644695), (210, 386817), (315, 257878), (630, 128939)]