20797776

素因数分解:

$2^4\times 3^3\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1601

約数の個数: 80

約数和(自身を含む): 61662720

約数和(自身を除く): 40864944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 48, 54, 62, 72, 93, 108, 124, 144, 186, 216, 248, 279, 372, 432, 496, 558, 744, 837, 1116, 1488, 1553, 1674, 2232, 3106, 3348, 4464, 4659, 6212, 6696, 9318, 12424, 13392, 13977, 18636, 24848, 27954, 37272, 41931, 48143, 55908, 74544, 83862, 96286, 111816, 144429, 167724, 192572, 223632, 288858, 335448, 385144, 433287, 577716, 670896, 770288, 866574, 1155432, 1299861, 1733148, 2310864, 2599722, 3466296, 5199444, 6932592, 10398888, 20797776]

約数ペア:

[(1, 20797776), (2, 10398888), (3, 6932592), (4, 5199444), (6, 3466296), (8, 2599722), (9, 2310864), (12, 1733148), (16, 1299861), (18, 1155432), (24, 866574), (27, 770288), (31, 670896), (36, 577716), (48, 433287), (54, 385144), (62, 335448), (72, 288858), (93, 223632), (108, 192572), (124, 167724), (144, 144429), (186, 111816), (216, 96286), (248, 83862), (279, 74544), (372, 55908), (432, 48143), (496, 41931), (558, 37272), (744, 27954), (837, 24848), (1116, 18636), (1488, 13977), (1553, 13392), (1674, 12424), (2232, 9318), (3106, 6696), (3348, 6212), (4464, 4659)]