204540160

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 544521600

約数和(自身を除く): 339981440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 73, 80, 88, 110, 128, 146, 160, 176, 199, 220, 256, 292, 320, 352, 365, 398, 440, 584, 640, 704, 730, 796, 803, 880, 995, 1168, 1280, 1408, 1460, 1592, 1606, 1760, 1990, 2189, 2336, 2816, 2920, 3184, 3212, 3520, 3980, 4015, 4378, 4672, 5840, 6368, 6424, 7040, 7960, 8030, 8756, 9344, 10945, 11680, 12736, 12848, 14080, 14527, 15920, 16060, 17512, 18688, 21890, 23360, 25472, 25696, 29054, 31840, 32120, 35024, 43780, 46720, 50944, 51392, 58108, 63680, 64240, 70048, 72635, 87560, 93440, 102784, 116216, 127360, 128480, 140096, 145270, 159797, 175120, 205568, 232432, 254720, 256960, 280192, 290540, 319594, 350240, 464864, 513920, 560384, 581080, 639188, 700480, 798985, 929728, 1027840, 1162160, 1278376, 1400960, 1597970, 1859456, 2324320, 2556752, 2801920, 3195940, 3718912, 4648640, 5113504, 6391880, 9297280, 10227008, 12783760, 18594560, 20454016, 25567520, 40908032, 51135040, 102270080, 204540160]

約数ペア:

[(1, 204540160), (2, 102270080), (4, 51135040), (5, 40908032), (8, 25567520), (10, 20454016), (11, 18594560), (16, 12783760), (20, 10227008), (22, 9297280), (32, 6391880), (40, 5113504), (44, 4648640), (55, 3718912), (64, 3195940), (73, 2801920), (80, 2556752), (88, 2324320), (110, 1859456), (128, 1597970), (146, 1400960), (160, 1278376), (176, 1162160), (199, 1027840), (220, 929728), (256, 798985), (292, 700480), (320, 639188), (352, 581080), (365, 560384), (398, 513920), (440, 464864), (584, 350240), (640, 319594), (704, 290540), (730, 280192), (796, 256960), (803, 254720), (880, 232432), (995, 205568), (1168, 175120), (1280, 159797), (1408, 145270), (1460, 140096), (1592, 128480), (1606, 127360), (1760, 116216), (1990, 102784), (2189, 93440), (2336, 87560), (2816, 72635), (2920, 70048), (3184, 64240), (3212, 63680), (3520, 58108), (3980, 51392), (4015, 50944), (4378, 46720), (4672, 43780), (5840, 35024), (6368, 32120), (6424, 31840), (7040, 29054), (7960, 25696), (8030, 25472), (8756, 23360), (9344, 21890), (10945, 18688), (11680, 17512), (12736, 16060), (12848, 15920), (14080, 14527)]