127970780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4099}}^1$

素因数の和:4338

約数の個数: 48

約数和(自身を含む): 308582400

約数和(自身を除く): 180611620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4099, 4460, 6244, 7805, 8198, 15610, 16396, 20495, 28693, 31220, 40990, 57386, 81980, 114772, 143465, 286930, 573860, 914077, 1828154, 3656308, 4570385, 6398539, 9140770, 12797078, 18281540, 25594156, 31992695, 63985390, 127970780]

約数ペア:

[(1, 127970780), (2, 63985390), (4, 31992695), (5, 25594156), (7, 18281540), (10, 12797078), (14, 9140770), (20, 6398539), (28, 4570385), (35, 3656308), (70, 1828154), (140, 914077), (223, 573860), (446, 286930), (892, 143465), (1115, 114772), (1561, 81980), (2230, 57386), (3122, 40990), (4099, 31220), (4460, 28693), (6244, 20495), (7805, 16396), (8198, 15610)]