20175556904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1\times {\mathrm{1489}}^1$

素因数の和:2530

約数の個数: 64

約数和(自身を含む): 40301520000

約数和(自身を除く): 20125963096

約数列:

[1, 2, 4, 8, 19, 38, 76, 97, 152, 194, 388, 776, 919, 1489, 1838, 1843, 2978, 3676, 3686, 5956, 7352, 7372, 11912, 14744, 17461, 28291, 34922, 56582, 69844, 89143, 113164, 139688, 144433, 178286, 226328, 288866, 356572, 577732, 713144, 1155464, 1368391, 1693717, 2736782, 2744227, 3387434, 5473564, 5488454, 6774868, 10947128, 10976908, 13549736, 21953816, 25999429, 51998858, 103997716, 132733927, 207995432, 265467854, 530935708, 1061871416, 2521944613, 5043889226, 10087778452, 20175556904]

約数ペア:

[(1, 20175556904), (2, 10087778452), (4, 5043889226), (8, 2521944613), (19, 1061871416), (38, 530935708), (76, 265467854), (97, 207995432), (152, 132733927), (194, 103997716), (388, 51998858), (776, 25999429), (919, 21953816), (1489, 13549736), (1838, 10976908), (1843, 10947128), (2978, 6774868), (3676, 5488454), (3686, 5473564), (5956, 3387434), (7352, 2744227), (7372, 2736782), (11912, 1693717), (14744, 1368391), (17461, 1155464), (28291, 713144), (34922, 577732), (56582, 356572), (69844, 288866), (89143, 226328), (113164, 178286), (139688, 144433)]