204714280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{64783}}^1$

素因数の和:64873

約数の個数: 32

約数和(自身を含む): 466444800

約数和(自身を除く): 261730520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 64783, 129566, 259132, 323915, 518264, 647830, 1295660, 2591320, 5117857, 10235714, 20471428, 25589285, 40942856, 51178570, 102357140, 204714280]

約数ペア:

[(1, 204714280), (2, 102357140), (4, 51178570), (5, 40942856), (8, 25589285), (10, 20471428), (20, 10235714), (40, 5117857), (79, 2591320), (158, 1295660), (316, 647830), (395, 518264), (632, 323915), (790, 259132), (1580, 129566), (3160, 64783)]