80984260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4861}}^1$

素因数の和:4901

約数の個数: 72

約数和(自身を含む): 209513304

約数和(自身を除く): 128529044

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 4861, 8330, 9722, 16660, 19444, 24305, 34027, 48610, 68054, 82637, 97220, 136108, 165274, 170135, 238189, 330548, 340270, 413185, 476378, 578459, 680540, 826370, 952756, 1156918, 1190945, 1652740, 2313836, 2381890, 2892295, 4049213, 4763780, 5784590, 8098426, 11569180, 16196852, 20246065, 40492130, 80984260]

約数ペア:

[(1, 80984260), (2, 40492130), (4, 20246065), (5, 16196852), (7, 11569180), (10, 8098426), (14, 5784590), (17, 4763780), (20, 4049213), (28, 2892295), (34, 2381890), (35, 2313836), (49, 1652740), (68, 1190945), (70, 1156918), (85, 952756), (98, 826370), (119, 680540), (140, 578459), (170, 476378), (196, 413185), (238, 340270), (245, 330548), (340, 238189), (476, 170135), (490, 165274), (595, 136108), (833, 97220), (980, 82637), (1190, 68054), (1666, 48610), (2380, 34027), (3332, 24305), (4165, 19444), (4861, 16660), (8330, 9722)]