7781930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 15579648

約数和(自身を除く): 7797718

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 1931, 2015, 3862, 4030, 9655, 19310, 25103, 50206, 59861, 119722, 125515, 251030, 299305, 598610, 778193, 1556386, 3890965, 7781930]

約数ペア:

[(1, 7781930), (2, 3890965), (5, 1556386), (10, 778193), (13, 598610), (26, 299305), (31, 251030), (62, 125515), (65, 119722), (130, 59861), (155, 50206), (310, 25103), (403, 19310), (806, 9655), (1931, 4030), (2015, 3862)]