81726080

素因数分解:

$2^7\times 5^1\times {\mathrm{277}}^1\times {\mathrm{461}}^1$

素因数の和:757

約数の個数: 64

約数和(自身を含む): 196507080

約数和(自身を除く): 114781000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 277, 320, 461, 554, 640, 922, 1108, 1385, 1844, 2216, 2305, 2770, 3688, 4432, 4610, 5540, 7376, 8864, 9220, 11080, 14752, 17728, 18440, 22160, 29504, 35456, 36880, 44320, 59008, 73760, 88640, 127697, 147520, 177280, 255394, 295040, 510788, 638485, 1021576, 1276970, 2043152, 2553940, 4086304, 5107880, 8172608, 10215760, 16345216, 20431520, 40863040, 81726080]

約数ペア:

[(1, 81726080), (2, 40863040), (4, 20431520), (5, 16345216), (8, 10215760), (10, 8172608), (16, 5107880), (20, 4086304), (32, 2553940), (40, 2043152), (64, 1276970), (80, 1021576), (128, 638485), (160, 510788), (277, 295040), (320, 255394), (461, 177280), (554, 147520), (640, 127697), (922, 88640), (1108, 73760), (1385, 59008), (1844, 44320), (2216, 36880), (2305, 35456), (2770, 29504), (3688, 22160), (4432, 18440), (4610, 17728), (5540, 14752), (7376, 11080), (8864, 9220)]