64140440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 180956160

約数和(自身を除く): 116815720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 67, 70, 91, 104, 130, 134, 140, 182, 260, 263, 268, 280, 335, 364, 455, 469, 520, 526, 536, 670, 728, 871, 910, 938, 1052, 1315, 1340, 1742, 1820, 1841, 1876, 2104, 2345, 2630, 2680, 3419, 3484, 3640, 3682, 3752, 4355, 4690, 5260, 6097, 6838, 6968, 7364, 8710, 9205, 9380, 10520, 12194, 13676, 14728, 17095, 17420, 17621, 18410, 18760, 23933, 24388, 27352, 30485, 34190, 34840, 35242, 36820, 47866, 48776, 60970, 68380, 70484, 73640, 88105, 95732, 119665, 121940, 123347, 136760, 140968, 176210, 191464, 229073, 239330, 243880, 246694, 352420, 458146, 478660, 493388, 616735, 704840, 916292, 957320, 986776, 1145365, 1233470, 1603511, 1832584, 2290730, 2466940, 3207022, 4581460, 4933880, 6414044, 8017555, 9162920, 12828088, 16035110, 32070220, 64140440]

約数ペア:

[(1, 64140440), (2, 32070220), (4, 16035110), (5, 12828088), (7, 9162920), (8, 8017555), (10, 6414044), (13, 4933880), (14, 4581460), (20, 3207022), (26, 2466940), (28, 2290730), (35, 1832584), (40, 1603511), (52, 1233470), (56, 1145365), (65, 986776), (67, 957320), (70, 916292), (91, 704840), (104, 616735), (130, 493388), (134, 478660), (140, 458146), (182, 352420), (260, 246694), (263, 243880), (268, 239330), (280, 229073), (335, 191464), (364, 176210), (455, 140968), (469, 136760), (520, 123347), (526, 121940), (536, 119665), (670, 95732), (728, 88105), (871, 73640), (910, 70484), (938, 68380), (1052, 60970), (1315, 48776), (1340, 47866), (1742, 36820), (1820, 35242), (1841, 34840), (1876, 34190), (2104, 30485), (2345, 27352), (2630, 24388), (2680, 23933), (3419, 18760), (3484, 18410), (3640, 17621), (3682, 17420), (3752, 17095), (4355, 14728), (4690, 13676), (5260, 12194), (6097, 10520), (6838, 9380), (6968, 9205), (7364, 8710)]