20765290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1201}}^1$

素因数の和:1247

約数の個数: 64

約数和(自身を含む): 48464640

約数和(自身を除く): 27699350

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1201, 1235, 1330, 1729, 2402, 2470, 3458, 6005, 8407, 8645, 12010, 15613, 16814, 17290, 22819, 31226, 42035, 45638, 78065, 84070, 109291, 114095, 156130, 159733, 218582, 228190, 296647, 319466, 546455, 593294, 798665, 1092910, 1483235, 1597330, 2076529, 2966470, 4153058, 10382645, 20765290]

約数ペア:

[(1, 20765290), (2, 10382645), (5, 4153058), (7, 2966470), (10, 2076529), (13, 1597330), (14, 1483235), (19, 1092910), (26, 798665), (35, 593294), (38, 546455), (65, 319466), (70, 296647), (91, 228190), (95, 218582), (130, 159733), (133, 156130), (182, 114095), (190, 109291), (247, 84070), (266, 78065), (455, 45638), (494, 42035), (665, 31226), (910, 22819), (1201, 17290), (1235, 16814), (1330, 15613), (1729, 12010), (2402, 8645), (2470, 8407), (3458, 6005)]