78274420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1367}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 188455680

約数和(自身を除く): 110181260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1367, 1636, 2045, 2734, 2863, 4090, 5468, 5726, 6835, 8180, 9569, 11452, 13670, 14315, 19138, 27340, 28630, 38276, 47845, 57260, 95690, 191380, 559103, 1118206, 2236412, 2795515, 3913721, 5591030, 7827442, 11182060, 15654884, 19568605, 39137210, 78274420]

約数ペア:

[(1, 78274420), (2, 39137210), (4, 19568605), (5, 15654884), (7, 11182060), (10, 7827442), (14, 5591030), (20, 3913721), (28, 2795515), (35, 2236412), (70, 1118206), (140, 559103), (409, 191380), (818, 95690), (1367, 57260), (1636, 47845), (2045, 38276), (2734, 28630), (2863, 27340), (4090, 19138), (5468, 14315), (5726, 13670), (6835, 11452), (8180, 9569)]