12972780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 39809952

約数和(自身を除く): 26837172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 743, 873, 970, 1164, 1455, 1486, 1746, 1940, 2229, 2910, 2972, 3492, 3715, 4365, 4458, 5820, 6687, 7430, 8730, 8916, 11145, 13374, 14860, 17460, 22290, 26748, 33435, 44580, 66870, 72071, 133740, 144142, 216213, 288284, 360355, 432426, 648639, 720710, 864852, 1081065, 1297278, 1441420, 2162130, 2594556, 3243195, 4324260, 6486390, 12972780]

約数ペア:

[(1, 12972780), (2, 6486390), (3, 4324260), (4, 3243195), (5, 2594556), (6, 2162130), (9, 1441420), (10, 1297278), (12, 1081065), (15, 864852), (18, 720710), (20, 648639), (30, 432426), (36, 360355), (45, 288284), (60, 216213), (90, 144142), (97, 133740), (180, 72071), (194, 66870), (291, 44580), (388, 33435), (485, 26748), (582, 22290), (743, 17460), (873, 14860), (970, 13374), (1164, 11145), (1455, 8916), (1486, 8730), (1746, 7430), (1940, 6687), (2229, 5820), (2910, 4458), (2972, 4365), (3492, 3715)]