20123458676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1\times {\mathrm{7243}}^1$

素因数の和:7668

約数の個数: 48

約数和(自身を含む): 37483353600

約数和(自身を除く): 17359894924

約数列:

[1, 2, 4, 19, 38, 76, 139, 263, 278, 526, 556, 1052, 2641, 4997, 5282, 7243, 9994, 10564, 14486, 19988, 28972, 36557, 73114, 137617, 146228, 275234, 550468, 694583, 1006777, 1389166, 1904909, 2013554, 2778332, 3809818, 4027108, 7619636, 19128763, 36193271, 38257526, 72386542, 76515052, 144773084, 264782351, 529564702, 1059129404, 5030864669, 10061729338, 20123458676]

約数ペア:

[(1, 20123458676), (2, 10061729338), (4, 5030864669), (19, 1059129404), (38, 529564702), (76, 264782351), (139, 144773084), (263, 76515052), (278, 72386542), (526, 38257526), (556, 36193271), (1052, 19128763), (2641, 7619636), (4997, 4027108), (5282, 3809818), (7243, 2778332), (9994, 2013554), (10564, 1904909), (14486, 1389166), (19988, 1006777), (28972, 694583), (36557, 550468), (73114, 275234), (137617, 146228)]