78756640

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1777}}^1$

素因数の和:2069

約数の個数: 48

約数和(自身を含む): 186839352

約数和(自身を除く): 108082712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 554, 1108, 1385, 1777, 2216, 2770, 3554, 4432, 5540, 7108, 8864, 8885, 11080, 14216, 17770, 22160, 28432, 35540, 44320, 56864, 71080, 142160, 284320, 492229, 984458, 1968916, 2461145, 3937832, 4922290, 7875664, 9844580, 15751328, 19689160, 39378320, 78756640]

約数ペア:

[(1, 78756640), (2, 39378320), (4, 19689160), (5, 15751328), (8, 9844580), (10, 7875664), (16, 4922290), (20, 3937832), (32, 2461145), (40, 1968916), (80, 984458), (160, 492229), (277, 284320), (554, 142160), (1108, 71080), (1385, 56864), (1777, 44320), (2216, 35540), (2770, 28432), (3554, 22160), (4432, 17770), (5540, 14216), (7108, 11080), (8864, 8885)]