78179990

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 171417600

約数和(自身を除く): 93237610

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 343, 490, 686, 805, 991, 1127, 1610, 1715, 1982, 2254, 3430, 4955, 5635, 6937, 7889, 9910, 11270, 13874, 15778, 22793, 34685, 39445, 45586, 48559, 69370, 78890, 97118, 113965, 159551, 227930, 242795, 319102, 339913, 485590, 679826, 797755, 1116857, 1595510, 1699565, 2233714, 3399130, 5584285, 7817999, 11168570, 15635998, 39089995, 78179990]

約数ペア:

[(1, 78179990), (2, 39089995), (5, 15635998), (7, 11168570), (10, 7817999), (14, 5584285), (23, 3399130), (35, 2233714), (46, 1699565), (49, 1595510), (70, 1116857), (98, 797755), (115, 679826), (161, 485590), (230, 339913), (245, 319102), (322, 242795), (343, 227930), (490, 159551), (686, 113965), (805, 97118), (991, 78890), (1127, 69370), (1610, 48559), (1715, 45586), (1982, 39445), (2254, 34685), (3430, 22793), (4955, 15778), (5635, 13874), (6937, 11270), (7889, 9910)]