20778590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 26914210

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 70, 85, 95, 119, 133, 170, 190, 238, 266, 323, 595, 646, 665, 919, 1190, 1330, 1615, 1838, 2261, 3230, 4522, 4595, 6433, 9190, 11305, 12866, 15623, 17461, 22610, 31246, 32165, 34922, 64330, 78115, 87305, 109361, 122227, 156230, 174610, 218722, 244454, 296837, 546805, 593674, 611135, 1093610, 1222270, 1484185, 2077859, 2968370, 4155718, 10389295, 20778590]

約数ペア:

[(1, 20778590), (2, 10389295), (5, 4155718), (7, 2968370), (10, 2077859), (14, 1484185), (17, 1222270), (19, 1093610), (34, 611135), (35, 593674), (38, 546805), (70, 296837), (85, 244454), (95, 218722), (119, 174610), (133, 156230), (170, 122227), (190, 109361), (238, 87305), (266, 78115), (323, 64330), (595, 34922), (646, 32165), (665, 31246), (919, 22610), (1190, 17461), (1330, 15623), (1615, 12866), (1838, 11305), (2261, 9190), (3230, 6433), (4522, 4595)]