199230040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 456334560

約数和(自身を除く): 257104520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 193, 197, 262, 386, 394, 524, 655, 772, 788, 965, 985, 1048, 1310, 1544, 1576, 1930, 1970, 2620, 3860, 3940, 5240, 7720, 7880, 25283, 25807, 38021, 50566, 51614, 76042, 101132, 103228, 126415, 129035, 152084, 190105, 202264, 206456, 252830, 258070, 304168, 380210, 505660, 516140, 760420, 1011320, 1032280, 1520840, 4980751, 9961502, 19923004, 24903755, 39846008, 49807510, 99615020, 199230040]

約数ペア:

[(1, 199230040), (2, 99615020), (4, 49807510), (5, 39846008), (8, 24903755), (10, 19923004), (20, 9961502), (40, 4980751), (131, 1520840), (193, 1032280), (197, 1011320), (262, 760420), (386, 516140), (394, 505660), (524, 380210), (655, 304168), (772, 258070), (788, 252830), (965, 206456), (985, 202264), (1048, 190105), (1310, 152084), (1544, 129035), (1576, 126415), (1930, 103228), (1970, 101132), (2620, 76042), (3860, 51614), (3940, 50566), (5240, 38021), (7720, 25807), (7880, 25283)]