217736820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172807}}^1$

素因数の和:172829

約数の個数: 72

約数和(自身を含む): 754825344

約数和(自身を除く): 537088524

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, 172807, 345614, 518421, 691228, 864035, 1036842, 1209649, 1555263, 1728070, 2073684, 2419298, 2592105, 3110526, 3456140, 3628947, 4838596, 5184210, 6048245, 6221052, 7257894, 7776315, 10368420, 10886841, 12096490, 14515788, 15552630, 18144735, 21773682, 24192980, 31105260, 36289470, 43547364, 54434205, 72578940, 108868410, 217736820]

約数ペア:

[(1, 217736820), (2, 108868410), (3, 72578940), (4, 54434205), (5, 43547364), (6, 36289470), (7, 31105260), (9, 24192980), (10, 21773682), (12, 18144735), (14, 15552630), (15, 14515788), (18, 12096490), (20, 10886841), (21, 10368420), (28, 7776315), (30, 7257894), (35, 6221052), (36, 6048245), (42, 5184210), (45, 4838596), (60, 3628947), (63, 3456140), (70, 3110526), (84, 2592105), (90, 2419298), (105, 2073684), (126, 1728070), (140, 1555263), (180, 1209649), (210, 1036842), (252, 864035), (315, 691228), (420, 518421), (630, 345614), (1260, 172807)]