20278987204

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{929717}}^1$

素因数の和:929788

約数の個数: 48

約数和(自身を含む): 43733934720

約数和(自身を除く): 23454947516

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 1148, 1558, 3116, 5453, 10906, 21812, 929717, 1859434, 3718868, 6508019, 13016038, 17664623, 26032076, 35329246, 38118397, 70658492, 76236794, 123652361, 152473588, 247304722, 266828779, 494609444, 533657558, 724249543, 1067315116, 1448499086, 2896998172, 5069746801, 10139493602, 20278987204]

約数ペア:

[(1, 20278987204), (2, 10139493602), (4, 5069746801), (7, 2896998172), (14, 1448499086), (19, 1067315116), (28, 724249543), (38, 533657558), (41, 494609444), (76, 266828779), (82, 247304722), (133, 152473588), (164, 123652361), (266, 76236794), (287, 70658492), (532, 38118397), (574, 35329246), (779, 26032076), (1148, 17664623), (1558, 13016038), (3116, 6508019), (5453, 3718868), (10906, 1859434), (21812, 929717)]