217250460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172421}}^1$

素因数の和:172443

約数の個数: 72

約数和(自身を含む): 753139296

約数和(自身を除く): 535888836

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172421, 344842, 517263, 689684, 862105, 1034526, 1206947, 1551789, 1724210, 2069052, 2413894, 2586315, 3103578, 3448420, 3620841, 4827788, 5172630, 6034735, 6207156, 7241682, 7758945, 10345260, 10862523, 12069470, 14483364, 15517890, 18104205, 21725046, 24138940, 31035780, 36208410, 43450092, 54312615, 72416820, 108625230, 217250460]

約数ペア:

[(1, 217250460), (2, 108625230), (3, 72416820), (4, 54312615), (5, 43450092), (6, 36208410), (7, 31035780), (9, 24138940), (10, 21725046), (12, 18104205), (14, 15517890), (15, 14483364), (18, 12069470), (20, 10862523), (21, 10345260), (28, 7758945), (30, 7241682), (35, 6207156), (36, 6034735), (42, 5172630), (45, 4827788), (60, 3620841), (63, 3448420), (70, 3103578), (84, 2586315), (90, 2413894), (105, 2069052), (126, 1724210), (140, 1551789), (180, 1206947), (210, 1034526), (252, 862105), (315, 689684), (420, 517263), (630, 344842), (1260, 172421)]