128599720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44041}}^1$

素因数の和:44125

約数の個数: 32

約数和(自身を含む): 293319720

約数和(自身を除く): 164720000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 44041, 88082, 176164, 220205, 352328, 440410, 880820, 1761640, 3214993, 6429986, 12859972, 16074965, 25719944, 32149930, 64299860, 128599720]

約数ペア:

[(1, 128599720), (2, 64299860), (4, 32149930), (5, 25719944), (8, 16074965), (10, 12859972), (20, 6429986), (40, 3214993), (73, 1761640), (146, 880820), (292, 440410), (365, 352328), (584, 220205), (730, 176164), (1460, 88082), (2920, 44041)]