78287680

素因数分解:

$2^6\times 5^1\times {\mathrm{349}}^1\times {\mathrm{701}}^1$

素因数の和:1067

約数の個数: 56

約数和(自身を含む): 187223400

約数和(自身を除く): 108935720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 349, 698, 701, 1396, 1402, 1745, 2792, 2804, 3490, 3505, 5584, 5608, 6980, 7010, 11168, 11216, 13960, 14020, 22336, 22432, 27920, 28040, 44864, 55840, 56080, 111680, 112160, 224320, 244649, 489298, 978596, 1223245, 1957192, 2446490, 3914384, 4892980, 7828768, 9785960, 15657536, 19571920, 39143840, 78287680]

約数ペア:

[(1, 78287680), (2, 39143840), (4, 19571920), (5, 15657536), (8, 9785960), (10, 7828768), (16, 4892980), (20, 3914384), (32, 2446490), (40, 1957192), (64, 1223245), (80, 978596), (160, 489298), (320, 244649), (349, 224320), (698, 112160), (701, 111680), (1396, 56080), (1402, 55840), (1745, 44864), (2792, 28040), (2804, 27920), (3490, 22432), (3505, 22336), (5584, 14020), (5608, 13960), (6980, 11216), (7010, 11168)]