4978040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 11324880

約数和(自身を除く): 6346840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1283, 1940, 2566, 3880, 5132, 6415, 10264, 12830, 25660, 51320, 124451, 248902, 497804, 622255, 995608, 1244510, 2489020, 4978040]

約数ペア:

[(1, 4978040), (2, 2489020), (4, 1244510), (5, 995608), (8, 622255), (10, 497804), (20, 248902), (40, 124451), (97, 51320), (194, 25660), (388, 12830), (485, 10264), (776, 6415), (970, 5132), (1283, 3880), (1940, 2566)]