78846080

素因数分解:

$2^7\times 5^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 189567000

約数和(自身を除く): 110720920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 349, 353, 640, 698, 706, 1396, 1412, 1745, 1765, 2792, 2824, 3490, 3530, 5584, 5648, 6980, 7060, 11168, 11296, 13960, 14120, 22336, 22592, 27920, 28240, 44672, 45184, 55840, 56480, 111680, 112960, 123197, 223360, 225920, 246394, 492788, 615985, 985576, 1231970, 1971152, 2463940, 3942304, 4927880, 7884608, 9855760, 15769216, 19711520, 39423040, 78846080]

約数ペア:

[(1, 78846080), (2, 39423040), (4, 19711520), (5, 15769216), (8, 9855760), (10, 7884608), (16, 4927880), (20, 3942304), (32, 2463940), (40, 1971152), (64, 1231970), (80, 985576), (128, 615985), (160, 492788), (320, 246394), (349, 225920), (353, 223360), (640, 123197), (698, 112960), (706, 111680), (1396, 56480), (1412, 55840), (1745, 45184), (1765, 44672), (2792, 28240), (2824, 27920), (3490, 22592), (3530, 22336), (5584, 14120), (5648, 13960), (6980, 11296), (7060, 11168)]