720121017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 1231718400

約数和(自身を除く): 511597383

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 131, 159, 231, 371, 393, 449, 583, 917, 1113, 1347, 1441, 1749, 2751, 3143, 4081, 4323, 4939, 6943, 9429, 10087, 12243, 14817, 20829, 23797, 30261, 34573, 48601, 58819, 71391, 76373, 103719, 145803, 166579, 176457, 229119, 261767, 411733, 499737, 534611, 647009, 785301, 1235199, 1603833, 1832369, 1941027, 3117407, 4529063, 5497107, 9352221, 13587189, 21821849, 34291477, 65465547, 102874431, 240040339, 720121017]

約数ペア:

[(1, 720121017), (3, 240040339), (7, 102874431), (11, 65465547), (21, 34291477), (33, 21821849), (53, 13587189), (77, 9352221), (131, 5497107), (159, 4529063), (231, 3117407), (371, 1941027), (393, 1832369), (449, 1603833), (583, 1235199), (917, 785301), (1113, 647009), (1347, 534611), (1441, 499737), (1749, 411733), (2751, 261767), (3143, 229119), (4081, 176457), (4323, 166579), (4939, 145803), (6943, 103719), (9429, 76373), (10087, 71391), (12243, 58819), (14817, 48601), (20829, 34573), (23797, 30261)]