20674440

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{709}}^1$

素因数の和:738

約数の個数: 112

約数和(自身を含む): 69842700

約数和(自身を除く): 49168260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 709, 729, 810, 972, 1080, 1215, 1418, 1458, 1620, 1944, 2127, 2430, 2836, 2916, 3240, 3545, 3645, 4254, 4860, 5672, 5832, 6381, 7090, 7290, 8508, 9720, 10635, 12762, 14180, 14580, 17016, 19143, 21270, 25524, 28360, 29160, 31905, 38286, 42540, 51048, 57429, 63810, 76572, 85080, 95715, 114858, 127620, 153144, 172287, 191430, 229716, 255240, 287145, 344574, 382860, 459432, 516861, 574290, 689148, 765720, 861435, 1033722, 1148580, 1378296, 1722870, 2067444, 2297160, 2584305, 3445740, 4134888, 5168610, 6891480, 10337220, 20674440]

約数ペア:

[(1, 20674440), (2, 10337220), (3, 6891480), (4, 5168610), (5, 4134888), (6, 3445740), (8, 2584305), (9, 2297160), (10, 2067444), (12, 1722870), (15, 1378296), (18, 1148580), (20, 1033722), (24, 861435), (27, 765720), (30, 689148), (36, 574290), (40, 516861), (45, 459432), (54, 382860), (60, 344574), (72, 287145), (81, 255240), (90, 229716), (108, 191430), (120, 172287), (135, 153144), (162, 127620), (180, 114858), (216, 95715), (243, 85080), (270, 76572), (324, 63810), (360, 57429), (405, 51048), (486, 42540), (540, 38286), (648, 31905), (709, 29160), (729, 28360), (810, 25524), (972, 21270), (1080, 19143), (1215, 17016), (1418, 14580), (1458, 14180), (1620, 12762), (1944, 10635), (2127, 9720), (2430, 8508), (2836, 7290), (2916, 7090), (3240, 6381), (3545, 5832), (3645, 5672), (4254, 4860)]