287708988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{67}}^2\times {\mathrm{109}}^1$

素因数の和:264

約数の個数: 108

約数和(自身を含む): 800026920

約数和(自身を除く): 512317932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 67, 84, 98, 109, 134, 147, 196, 201, 218, 268, 294, 327, 402, 436, 469, 588, 654, 763, 804, 938, 1308, 1407, 1526, 1876, 2289, 2814, 3052, 3283, 4489, 4578, 5341, 5628, 6566, 7303, 8978, 9156, 9849, 10682, 13132, 13467, 14606, 16023, 17956, 19698, 21364, 21909, 26934, 29212, 31423, 32046, 39396, 43818, 51121, 53868, 62846, 64092, 87636, 94269, 102242, 125692, 153363, 188538, 204484, 219961, 306726, 357847, 377076, 439922, 489301, 613452, 659883, 715694, 879844, 978602, 1073541, 1319766, 1431388, 1467903, 1957204, 2147082, 2639532, 2935806, 3425107, 4294164, 5871612, 6850214, 10275321, 13700428, 20550642, 23975749, 41101284, 47951498, 71927247, 95902996, 143854494, 287708988]

約数ペア:

[(1, 287708988), (2, 143854494), (3, 95902996), (4, 71927247), (6, 47951498), (7, 41101284), (12, 23975749), (14, 20550642), (21, 13700428), (28, 10275321), (42, 6850214), (49, 5871612), (67, 4294164), (84, 3425107), (98, 2935806), (109, 2639532), (134, 2147082), (147, 1957204), (196, 1467903), (201, 1431388), (218, 1319766), (268, 1073541), (294, 978602), (327, 879844), (402, 715694), (436, 659883), (469, 613452), (588, 489301), (654, 439922), (763, 377076), (804, 357847), (938, 306726), (1308, 219961), (1407, 204484), (1526, 188538), (1876, 153363), (2289, 125692), (2814, 102242), (3052, 94269), (3283, 87636), (4489, 64092), (4578, 62846), (5341, 53868), (5628, 51121), (6566, 43818), (7303, 39396), (8978, 32046), (9156, 31423), (9849, 29212), (10682, 26934), (13132, 21909), (13467, 21364), (14606, 19698), (16023, 17956)]