20239999725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{76907}}^1$

素因数の和:76971

約数の個数: 72

約数和(自身を含む): 38051002080

約数和(自身を除く): 17811002355

約数列:

[1, 3, 5, 11, 15, 25, 29, 33, 55, 75, 87, 121, 145, 165, 275, 319, 363, 435, 605, 725, 825, 957, 1595, 1815, 2175, 3025, 3509, 4785, 7975, 9075, 10527, 17545, 23925, 52635, 76907, 87725, 230721, 263175, 384535, 845977, 1153605, 1922675, 2230303, 2537931, 4229885, 5768025, 6690909, 9305747, 11151515, 12689655, 21149425, 24533333, 27917241, 33454545, 46528735, 55757575, 63448275, 73599999, 122666665, 139586205, 167272725, 232643675, 269866663, 367999995, 613333325, 697931025, 809599989, 1349333315, 1839999975, 4047999945, 6746666575, 20239999725]

約数ペア:

[(1, 20239999725), (3, 6746666575), (5, 4047999945), (11, 1839999975), (15, 1349333315), (25, 809599989), (29, 697931025), (33, 613333325), (55, 367999995), (75, 269866663), (87, 232643675), (121, 167272725), (145, 139586205), (165, 122666665), (275, 73599999), (319, 63448275), (363, 55757575), (435, 46528735), (605, 33454545), (725, 27917241), (825, 24533333), (957, 21149425), (1595, 12689655), (1815, 11151515), (2175, 9305747), (3025, 6690909), (3509, 5768025), (4785, 4229885), (7975, 2537931), (9075, 2230303), (10527, 1922675), (17545, 1153605), (23925, 845977), (52635, 384535), (76907, 263175), (87725, 230721)]