19791240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23561}}^1$

素因数の和:23582

約数の個数: 64

約数和(自身を含む): 67858560

約数和(自身を除く): 48067320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23561, 47122, 70683, 94244, 117805, 141366, 164927, 188488, 235610, 282732, 329854, 353415, 471220, 494781, 565464, 659708, 706830, 824635, 942440, 989562, 1319416, 1413660, 1649270, 1979124, 2473905, 2827320, 3298540, 3958248, 4947810, 6597080, 9895620, 19791240]

約数ペア:

[(1, 19791240), (2, 9895620), (3, 6597080), (4, 4947810), (5, 3958248), (6, 3298540), (7, 2827320), (8, 2473905), (10, 1979124), (12, 1649270), (14, 1413660), (15, 1319416), (20, 989562), (21, 942440), (24, 824635), (28, 706830), (30, 659708), (35, 565464), (40, 494781), (42, 471220), (56, 353415), (60, 329854), (70, 282732), (84, 235610), (105, 188488), (120, 164927), (140, 141366), (168, 117805), (210, 94244), (280, 70683), (420, 47122), (840, 23561)]