20680272

素因数分解:

$2^4\times 3^8\times {\mathrm{197}}^1$

素因数の和:229

約数の個数: 90

約数和(自身を含む): 60404058

約数和(自身を除く): 39723786

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 197, 216, 243, 324, 394, 432, 486, 591, 648, 729, 788, 972, 1182, 1296, 1458, 1576, 1773, 1944, 2187, 2364, 2916, 3152, 3546, 3888, 4374, 4728, 5319, 5832, 6561, 7092, 8748, 9456, 10638, 11664, 13122, 14184, 15957, 17496, 21276, 26244, 28368, 31914, 34992, 42552, 47871, 52488, 63828, 85104, 95742, 104976, 127656, 143613, 191484, 255312, 287226, 382968, 430839, 574452, 765936, 861678, 1148904, 1292517, 1723356, 2297808, 2585034, 3446712, 5170068, 6893424, 10340136, 20680272]

約数ペア:

[(1, 20680272), (2, 10340136), (3, 6893424), (4, 5170068), (6, 3446712), (8, 2585034), (9, 2297808), (12, 1723356), (16, 1292517), (18, 1148904), (24, 861678), (27, 765936), (36, 574452), (48, 430839), (54, 382968), (72, 287226), (81, 255312), (108, 191484), (144, 143613), (162, 127656), (197, 104976), (216, 95742), (243, 85104), (324, 63828), (394, 52488), (432, 47871), (486, 42552), (591, 34992), (648, 31914), (729, 28368), (788, 26244), (972, 21276), (1182, 17496), (1296, 15957), (1458, 14184), (1576, 13122), (1773, 11664), (1944, 10638), (2187, 9456), (2364, 8748), (2916, 7092), (3152, 6561), (3546, 5832), (3888, 5319), (4374, 4728)]