128301440

素因数分解:

$2^7\times 5^1\times {\mathrm{307}}^1\times {\mathrm{653}}^1$

素因数の和:979

約数の個数: 64

約数和(自身を含む): 308190960

約数和(自身を除く): 179889520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 307, 320, 614, 640, 653, 1228, 1306, 1535, 2456, 2612, 3070, 3265, 4912, 5224, 6140, 6530, 9824, 10448, 12280, 13060, 19648, 20896, 24560, 26120, 39296, 41792, 49120, 52240, 83584, 98240, 104480, 196480, 200471, 208960, 400942, 417920, 801884, 1002355, 1603768, 2004710, 3207536, 4009420, 6415072, 8018840, 12830144, 16037680, 25660288, 32075360, 64150720, 128301440]

約数ペア:

[(1, 128301440), (2, 64150720), (4, 32075360), (5, 25660288), (8, 16037680), (10, 12830144), (16, 8018840), (20, 6415072), (32, 4009420), (40, 3207536), (64, 2004710), (80, 1603768), (128, 1002355), (160, 801884), (307, 417920), (320, 400942), (614, 208960), (640, 200471), (653, 196480), (1228, 104480), (1306, 98240), (1535, 83584), (2456, 52240), (2612, 49120), (3070, 41792), (3265, 39296), (4912, 26120), (5224, 24560), (6140, 20896), (6530, 19648), (9824, 13060), (10448, 12280)]