28280252

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1051

約数の個数: 72

約数和(自身を含む): 67702320

約数和(自身を除く): 39422068

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 1001, 1009, 1078, 1274, 2002, 2018, 2156, 2548, 4004, 4036, 7007, 7063, 11099, 13117, 14014, 14126, 22198, 26234, 28028, 28252, 44396, 49441, 52468, 77693, 91819, 98882, 144287, 155386, 183638, 197764, 288574, 310772, 367276, 543851, 577148, 642733, 1010009, 1087702, 1285466, 2020018, 2175404, 2570932, 4040036, 7070063, 14140126, 28280252]

約数ペア:

[(1, 28280252), (2, 14140126), (4, 7070063), (7, 4040036), (11, 2570932), (13, 2175404), (14, 2020018), (22, 1285466), (26, 1087702), (28, 1010009), (44, 642733), (49, 577148), (52, 543851), (77, 367276), (91, 310772), (98, 288574), (143, 197764), (154, 183638), (182, 155386), (196, 144287), (286, 98882), (308, 91819), (364, 77693), (539, 52468), (572, 49441), (637, 44396), (1001, 28252), (1009, 28028), (1078, 26234), (1274, 22198), (2002, 14126), (2018, 14014), (2156, 13117), (2548, 11099), (4004, 7063), (4036, 7007)]