78920360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:930

約数の個数: 64

約数和(自身を含む): 187228800

約数和(自身を除く): 108308440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 436, 460, 545, 787, 872, 920, 1090, 1574, 2180, 2507, 3148, 3935, 4360, 5014, 6296, 7870, 10028, 12535, 15740, 18101, 20056, 25070, 31480, 36202, 50140, 72404, 85783, 90505, 100280, 144808, 171566, 181010, 343132, 362020, 428915, 686264, 724040, 857830, 1715660, 1973009, 3431320, 3946018, 7892036, 9865045, 15784072, 19730090, 39460180, 78920360]

約数ペア:

[(1, 78920360), (2, 39460180), (4, 19730090), (5, 15784072), (8, 9865045), (10, 7892036), (20, 3946018), (23, 3431320), (40, 1973009), (46, 1715660), (92, 857830), (109, 724040), (115, 686264), (184, 428915), (218, 362020), (230, 343132), (436, 181010), (460, 171566), (545, 144808), (787, 100280), (872, 90505), (920, 85783), (1090, 72404), (1574, 50140), (2180, 36202), (2507, 31480), (3148, 25070), (3935, 20056), (4360, 18101), (5014, 15740), (6296, 12535), (7870, 10028)]