2154454785

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{2267}}^1$

素因数の和:2723

約数の個数: 72

約数和(自身を含む): 4356084096

約数和(自身を除く): 2201629311

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 431, 441, 735, 1293, 2155, 2205, 2267, 3017, 3879, 6465, 6801, 9051, 11335, 15085, 15869, 19395, 20403, 21119, 27153, 34005, 45255, 47607, 63357, 79345, 102015, 105595, 111083, 135765, 142821, 190071, 238035, 316785, 333249, 555415, 714105, 950355, 977077, 999747, 1666245, 2931231, 4885385, 4998735, 6839539, 8793693, 14656155, 20518617, 34197695, 43968465, 47876773, 61555851, 102593085, 143630319, 239383865, 307779255, 430890957, 718151595, 2154454785]

約数ペア:

[(1, 2154454785), (3, 718151595), (5, 430890957), (7, 307779255), (9, 239383865), (15, 143630319), (21, 102593085), (35, 61555851), (45, 47876773), (49, 43968465), (63, 34197695), (105, 20518617), (147, 14656155), (245, 8793693), (315, 6839539), (431, 4998735), (441, 4885385), (735, 2931231), (1293, 1666245), (2155, 999747), (2205, 977077), (2267, 950355), (3017, 714105), (3879, 555415), (6465, 333249), (6801, 316785), (9051, 238035), (11335, 190071), (15085, 142821), (15869, 135765), (19395, 111083), (20403, 105595), (21119, 102015), (27153, 79345), (34005, 63357), (45255, 47607)]