4720020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{811}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 13368768

約数和(自身を除く): 8648748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 811, 970, 1164, 1455, 1622, 1940, 2433, 2910, 3244, 4055, 4866, 5820, 8110, 9732, 12165, 16220, 24330, 48660, 78667, 157334, 236001, 314668, 393335, 472002, 786670, 944004, 1180005, 1573340, 2360010, 4720020]

約数ペア:

[(1, 4720020), (2, 2360010), (3, 1573340), (4, 1180005), (5, 944004), (6, 786670), (10, 472002), (12, 393335), (15, 314668), (20, 236001), (30, 157334), (60, 78667), (97, 48660), (194, 24330), (291, 16220), (388, 12165), (485, 9732), (582, 8110), (811, 5820), (970, 4866), (1164, 4055), (1455, 3244), (1622, 2910), (1940, 2433)]