20751660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:564

約数の個数: 96

約数和(自身を含む): 65479680

約数和(自身を除く): 44728020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 83, 90, 108, 135, 166, 180, 249, 270, 332, 415, 463, 498, 540, 747, 830, 926, 996, 1245, 1389, 1494, 1660, 1852, 2241, 2315, 2490, 2778, 2988, 3735, 4167, 4482, 4630, 4980, 5556, 6945, 7470, 8334, 8964, 9260, 11205, 12501, 13890, 14940, 16668, 20835, 22410, 25002, 27780, 38429, 41670, 44820, 50004, 62505, 76858, 83340, 115287, 125010, 153716, 192145, 230574, 250020, 345861, 384290, 461148, 576435, 691722, 768580, 1037583, 1152870, 1383444, 1729305, 2075166, 2305740, 3458610, 4150332, 5187915, 6917220, 10375830, 20751660]

約数ペア:

[(1, 20751660), (2, 10375830), (3, 6917220), (4, 5187915), (5, 4150332), (6, 3458610), (9, 2305740), (10, 2075166), (12, 1729305), (15, 1383444), (18, 1152870), (20, 1037583), (27, 768580), (30, 691722), (36, 576435), (45, 461148), (54, 384290), (60, 345861), (83, 250020), (90, 230574), (108, 192145), (135, 153716), (166, 125010), (180, 115287), (249, 83340), (270, 76858), (332, 62505), (415, 50004), (463, 44820), (498, 41670), (540, 38429), (747, 27780), (830, 25002), (926, 22410), (996, 20835), (1245, 16668), (1389, 14940), (1494, 13890), (1660, 12501), (1852, 11205), (2241, 9260), (2315, 8964), (2490, 8334), (2778, 7470), (2988, 6945), (3735, 5556), (4167, 4980), (4482, 4630)]