1287761620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 2847237120

約数和(自身を除く): 1559475500

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 103, 158, 164, 193, 205, 206, 316, 386, 395, 410, 412, 515, 772, 790, 820, 965, 1030, 1580, 1930, 2060, 3239, 3860, 4223, 6478, 7913, 8137, 8446, 12956, 15247, 15826, 16195, 16274, 16892, 19879, 21115, 30494, 31652, 32390, 32548, 39565, 39758, 40685, 42230, 60988, 64780, 76235, 79130, 79516, 81370, 84460, 99395, 152470, 158260, 162740, 198790, 304940, 333617, 397580, 625127, 667234, 815039, 1250254, 1334468, 1570441, 1630078, 1668085, 2500508, 3125635, 3140882, 3260156, 3336170, 4075195, 6251270, 6281764, 6672340, 7852205, 8150390, 12502540, 15704410, 16300780, 31408820, 64388081, 128776162, 257552324, 321940405, 643880810, 1287761620]

約数ペア:

[(1, 1287761620), (2, 643880810), (4, 321940405), (5, 257552324), (10, 128776162), (20, 64388081), (41, 31408820), (79, 16300780), (82, 15704410), (103, 12502540), (158, 8150390), (164, 7852205), (193, 6672340), (205, 6281764), (206, 6251270), (316, 4075195), (386, 3336170), (395, 3260156), (410, 3140882), (412, 3125635), (515, 2500508), (772, 1668085), (790, 1630078), (820, 1570441), (965, 1334468), (1030, 1250254), (1580, 815039), (1930, 667234), (2060, 625127), (3239, 397580), (3860, 333617), (4223, 304940), (6478, 198790), (7913, 162740), (8137, 158260), (8446, 152470), (12956, 99395), (15247, 84460), (15826, 81370), (16195, 79516), (16274, 79130), (16892, 76235), (19879, 64780), (21115, 60988), (30494, 42230), (31652, 40685), (32390, 39758), (32548, 39565)]