200521720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 528184800

約数和(自身を除く): 327663080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 263, 280, 389, 392, 490, 526, 778, 980, 1052, 1315, 1556, 1841, 1945, 1960, 2104, 2630, 2723, 3112, 3682, 3890, 5260, 5446, 7364, 7780, 9205, 10520, 10892, 12887, 13615, 14728, 15560, 18410, 19061, 21784, 25774, 27230, 36820, 38122, 51548, 54460, 64435, 73640, 76244, 95305, 102307, 103096, 108920, 128870, 152488, 190610, 204614, 257740, 381220, 409228, 511535, 515480, 716149, 762440, 818456, 1023070, 1432298, 2046140, 2864596, 3580745, 4092280, 5013043, 5729192, 7161490, 10026086, 14322980, 20052172, 25065215, 28645960, 40104344, 50130430, 100260860, 200521720]

約数ペア:

[(1, 200521720), (2, 100260860), (4, 50130430), (5, 40104344), (7, 28645960), (8, 25065215), (10, 20052172), (14, 14322980), (20, 10026086), (28, 7161490), (35, 5729192), (40, 5013043), (49, 4092280), (56, 3580745), (70, 2864596), (98, 2046140), (140, 1432298), (196, 1023070), (245, 818456), (263, 762440), (280, 716149), (389, 515480), (392, 511535), (490, 409228), (526, 381220), (778, 257740), (980, 204614), (1052, 190610), (1315, 152488), (1556, 128870), (1841, 108920), (1945, 103096), (1960, 102307), (2104, 95305), (2630, 76244), (2723, 73640), (3112, 64435), (3682, 54460), (3890, 51548), (5260, 38122), (5446, 36820), (7364, 27230), (7780, 25774), (9205, 21784), (10520, 19061), (10892, 18410), (12887, 15560), (13615, 14728)]