20201440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1$

素因数の和:1100

約数の個数: 96

約数和(自身を含む): 57806784

約数和(自身を除く): 37605344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 340, 476, 544, 560, 595, 680, 952, 1061, 1120, 1190, 1360, 1904, 2122, 2380, 2720, 3808, 4244, 4760, 5305, 7427, 8488, 9520, 10610, 14854, 16976, 18037, 19040, 21220, 29708, 33952, 36074, 37135, 42440, 59416, 72148, 74270, 84880, 90185, 118832, 126259, 144296, 148540, 169760, 180370, 237664, 252518, 288592, 297080, 360740, 505036, 577184, 594160, 631295, 721480, 1010072, 1188320, 1262590, 1442960, 2020144, 2525180, 2885920, 4040288, 5050360, 10100720, 20201440]

約数ペア:

[(1, 20201440), (2, 10100720), (4, 5050360), (5, 4040288), (7, 2885920), (8, 2525180), (10, 2020144), (14, 1442960), (16, 1262590), (17, 1188320), (20, 1010072), (28, 721480), (32, 631295), (34, 594160), (35, 577184), (40, 505036), (56, 360740), (68, 297080), (70, 288592), (80, 252518), (85, 237664), (112, 180370), (119, 169760), (136, 148540), (140, 144296), (160, 126259), (170, 118832), (224, 90185), (238, 84880), (272, 74270), (280, 72148), (340, 59416), (476, 42440), (544, 37135), (560, 36074), (595, 33952), (680, 29708), (952, 21220), (1061, 19040), (1120, 18037), (1190, 16976), (1360, 14854), (1904, 10610), (2122, 9520), (2380, 8488), (2720, 7427), (3808, 5305), (4244, 4760)]