20868435

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 45372096

約数和(自身を除く): 24503661

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 81, 85, 105, 119, 135, 153, 189, 255, 315, 357, 405, 433, 459, 567, 595, 765, 945, 1071, 1299, 1377, 1785, 2165, 2295, 2835, 3031, 3213, 3897, 5355, 6495, 6885, 7361, 9093, 9639, 11691, 15155, 16065, 19485, 22083, 27279, 35073, 36805, 45465, 48195, 51527, 58455, 66249, 81837, 110415, 136395, 154581, 175365, 198747, 245511, 257635, 331245, 409185, 463743, 596241, 772905, 993735, 1227555, 1391229, 2318715, 2981205, 4173687, 6956145, 20868435]

約数ペア:

[(1, 20868435), (3, 6956145), (5, 4173687), (7, 2981205), (9, 2318715), (15, 1391229), (17, 1227555), (21, 993735), (27, 772905), (35, 596241), (45, 463743), (51, 409185), (63, 331245), (81, 257635), (85, 245511), (105, 198747), (119, 175365), (135, 154581), (153, 136395), (189, 110415), (255, 81837), (315, 66249), (357, 58455), (405, 51527), (433, 48195), (459, 45465), (567, 36805), (595, 35073), (765, 27279), (945, 22083), (1071, 19485), (1299, 16065), (1377, 15155), (1785, 11691), (2165, 9639), (2295, 9093), (2835, 7361), (3031, 6885), (3213, 6495), (3897, 5355)]