79880240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2178

約数の個数: 80

約数和(自身を含む): 207415296

約数和(自身を除く): 127535056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2111, 2365, 3440, 3784, 4222, 4730, 7568, 8444, 9460, 10555, 16888, 18920, 21110, 23221, 33776, 37840, 42220, 46442, 84440, 90773, 92884, 116105, 168880, 181546, 185768, 232210, 363092, 371536, 453865, 464420, 726184, 907730, 928840, 998503, 1452368, 1815460, 1857680, 1997006, 3630920, 3994012, 4992515, 7261840, 7988024, 9985030, 15976048, 19970060, 39940120, 79880240]

約数ペア:

[(1, 79880240), (2, 39940120), (4, 19970060), (5, 15976048), (8, 9985030), (10, 7988024), (11, 7261840), (16, 4992515), (20, 3994012), (22, 3630920), (40, 1997006), (43, 1857680), (44, 1815460), (55, 1452368), (80, 998503), (86, 928840), (88, 907730), (110, 726184), (172, 464420), (176, 453865), (215, 371536), (220, 363092), (344, 232210), (430, 185768), (440, 181546), (473, 168880), (688, 116105), (860, 92884), (880, 90773), (946, 84440), (1720, 46442), (1892, 42220), (2111, 37840), (2365, 33776), (3440, 23221), (3784, 21110), (4222, 18920), (4730, 16888), (7568, 10555), (8444, 9460)]