128315512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{64937}}^1$

素因数の和:64975

約数の個数: 32

約数和(自身を含む): 272739600

約数和(自身を除く): 144424088

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 64937, 129874, 259748, 519496, 844181, 1233803, 1688362, 2467606, 3376724, 4935212, 6753448, 9870424, 16039439, 32078878, 64157756, 128315512]

約数ペア:

[(1, 128315512), (2, 64157756), (4, 32078878), (8, 16039439), (13, 9870424), (19, 6753448), (26, 4935212), (38, 3376724), (52, 2467606), (76, 1688362), (104, 1233803), (152, 844181), (247, 519496), (494, 259748), (988, 129874), (1976, 64937)]