20157638408

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1\times {\mathrm{463}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 38579224320

約数和(自身を除く): 18421585912

約数列:

[1, 2, 4, 8, 107, 181, 214, 281, 362, 428, 463, 562, 724, 856, 926, 1124, 1448, 1852, 2248, 3704, 19367, 30067, 38734, 49541, 50861, 60134, 77468, 83803, 99082, 101722, 120268, 130103, 154936, 167606, 198164, 203444, 240536, 260206, 335212, 396328, 406888, 520412, 670424, 1040824, 5442127, 8966921, 10884254, 13921021, 17933842, 21768508, 23548643, 27842042, 35867684, 43537016, 47097286, 55684084, 71735368, 94194572, 111368168, 188389144, 2519704801, 5039409602, 10078819204, 20157638408]

約数ペア:

[(1, 20157638408), (2, 10078819204), (4, 5039409602), (8, 2519704801), (107, 188389144), (181, 111368168), (214, 94194572), (281, 71735368), (362, 55684084), (428, 47097286), (463, 43537016), (562, 35867684), (724, 27842042), (856, 23548643), (926, 21768508), (1124, 17933842), (1448, 13921021), (1852, 10884254), (2248, 8966921), (3704, 5442127), (19367, 1040824), (30067, 670424), (38734, 520412), (49541, 406888), (50861, 396328), (60134, 335212), (77468, 260206), (83803, 240536), (99082, 203444), (101722, 198164), (120268, 167606), (130103, 154936)]