2008305920

素因数分解:

$2^8\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21493}}^1$

素因数の和:21587

約数の個数: 72

約数和(自身を含む): 4876644696

約数和(自身を除く): 2868338776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 365, 584, 640, 730, 1168, 1280, 1460, 2336, 2920, 4672, 5840, 9344, 11680, 18688, 21493, 23360, 42986, 46720, 85972, 93440, 107465, 171944, 214930, 343888, 429860, 687776, 859720, 1375552, 1568989, 1719440, 2751104, 3137978, 3438880, 5502208, 6275956, 6877760, 7844945, 12551912, 13755520, 15689890, 25103824, 27511040, 31379780, 50207648, 62759560, 100415296, 125519120, 200830592, 251038240, 401661184, 502076480, 1004152960, 2008305920]

約数ペア:

[(1, 2008305920), (2, 1004152960), (4, 502076480), (5, 401661184), (8, 251038240), (10, 200830592), (16, 125519120), (20, 100415296), (32, 62759560), (40, 50207648), (64, 31379780), (73, 27511040), (80, 25103824), (128, 15689890), (146, 13755520), (160, 12551912), (256, 7844945), (292, 6877760), (320, 6275956), (365, 5502208), (584, 3438880), (640, 3137978), (730, 2751104), (1168, 1719440), (1280, 1568989), (1460, 1375552), (2336, 859720), (2920, 687776), (4672, 429860), (5840, 343888), (9344, 214930), (11680, 171944), (18688, 107465), (21493, 93440), (23360, 85972), (42986, 46720)]