20740510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 26071010

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 58, 70, 85, 119, 145, 170, 203, 238, 290, 406, 493, 595, 601, 986, 1015, 1190, 1202, 2030, 2465, 3005, 3451, 4207, 4930, 6010, 6902, 8414, 10217, 17255, 17429, 20434, 21035, 34510, 34858, 42070, 51085, 71519, 87145, 102170, 122003, 143038, 174290, 244006, 296293, 357595, 592586, 610015, 715190, 1220030, 1481465, 2074051, 2962930, 4148102, 10370255, 20740510]

約数ペア:

[(1, 20740510), (2, 10370255), (5, 4148102), (7, 2962930), (10, 2074051), (14, 1481465), (17, 1220030), (29, 715190), (34, 610015), (35, 592586), (58, 357595), (70, 296293), (85, 244006), (119, 174290), (145, 143038), (170, 122003), (203, 102170), (238, 87145), (290, 71519), (406, 51085), (493, 42070), (595, 34858), (601, 34510), (986, 21035), (1015, 20434), (1190, 17429), (1202, 17255), (2030, 10217), (2465, 8414), (3005, 6902), (3451, 6010), (4207, 4930)]