2178990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 6469632

約数和(自身を除く): 4290642

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 31, 33, 45, 55, 62, 66, 71, 90, 93, 99, 110, 142, 155, 165, 186, 198, 213, 279, 310, 330, 341, 355, 426, 465, 495, 558, 639, 682, 710, 781, 930, 990, 1023, 1065, 1278, 1395, 1562, 1705, 2046, 2130, 2201, 2343, 2790, 3069, 3195, 3410, 3905, 4402, 4686, 5115, 6138, 6390, 6603, 7029, 7810, 10230, 11005, 11715, 13206, 14058, 15345, 19809, 22010, 23430, 24211, 30690, 33015, 35145, 39618, 48422, 66030, 70290, 72633, 99045, 121055, 145266, 198090, 217899, 242110, 363165, 435798, 726330, 1089495, 2178990]

約数ペア:

[(1, 2178990), (2, 1089495), (3, 726330), (5, 435798), (6, 363165), (9, 242110), (10, 217899), (11, 198090), (15, 145266), (18, 121055), (22, 99045), (30, 72633), (31, 70290), (33, 66030), (45, 48422), (55, 39618), (62, 35145), (66, 33015), (71, 30690), (90, 24211), (93, 23430), (99, 22010), (110, 19809), (142, 15345), (155, 14058), (165, 13206), (186, 11715), (198, 11005), (213, 10230), (279, 7810), (310, 7029), (330, 6603), (341, 6390), (355, 6138), (426, 5115), (465, 4686), (495, 4402), (558, 3905), (639, 3410), (682, 3195), (710, 3069), (781, 2790), (930, 2343), (990, 2201), (1023, 2130), (1065, 2046), (1278, 1705), (1395, 1562)]