20226640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1901}}^1$

素因数の和:1940

約数の個数: 80

約数和(自身を含む): 56603520

約数和(自身を除く): 36376880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1901, 2128, 2660, 3802, 5320, 7604, 9505, 10640, 13307, 15208, 19010, 26614, 30416, 36119, 38020, 53228, 66535, 72238, 76040, 106456, 133070, 144476, 152080, 180595, 212912, 252833, 266140, 288952, 361190, 505666, 532280, 577904, 722380, 1011332, 1064560, 1264165, 1444760, 2022664, 2528330, 2889520, 4045328, 5056660, 10113320, 20226640]

約数ペア:

[(1, 20226640), (2, 10113320), (4, 5056660), (5, 4045328), (7, 2889520), (8, 2528330), (10, 2022664), (14, 1444760), (16, 1264165), (19, 1064560), (20, 1011332), (28, 722380), (35, 577904), (38, 532280), (40, 505666), (56, 361190), (70, 288952), (76, 266140), (80, 252833), (95, 212912), (112, 180595), (133, 152080), (140, 144476), (152, 133070), (190, 106456), (266, 76040), (280, 72238), (304, 66535), (380, 53228), (532, 38020), (560, 36119), (665, 30416), (760, 26614), (1064, 19010), (1330, 15208), (1520, 13307), (1901, 10640), (2128, 9505), (2660, 7604), (3802, 5320)]