67654480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 163810944

約数和(自身を除く): 96156464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 277, 284, 344, 355, 430, 554, 568, 688, 710, 860, 1108, 1136, 1385, 1420, 1720, 2216, 2770, 2840, 3053, 3440, 4432, 5540, 5680, 6106, 11080, 11911, 12212, 15265, 19667, 22160, 23822, 24424, 30530, 39334, 47644, 48848, 59555, 61060, 78668, 95288, 98335, 119110, 122120, 157336, 190576, 196670, 238220, 244240, 314672, 393340, 476440, 786680, 845681, 952880, 1573360, 1691362, 3382724, 4228405, 6765448, 8456810, 13530896, 16913620, 33827240, 67654480]

約数ペア:

[(1, 67654480), (2, 33827240), (4, 16913620), (5, 13530896), (8, 8456810), (10, 6765448), (16, 4228405), (20, 3382724), (40, 1691362), (43, 1573360), (71, 952880), (80, 845681), (86, 786680), (142, 476440), (172, 393340), (215, 314672), (277, 244240), (284, 238220), (344, 196670), (355, 190576), (430, 157336), (554, 122120), (568, 119110), (688, 98335), (710, 95288), (860, 78668), (1108, 61060), (1136, 59555), (1385, 48848), (1420, 47644), (1720, 39334), (2216, 30530), (2770, 24424), (2840, 23822), (3053, 22160), (3440, 19667), (4432, 15265), (5540, 12212), (5680, 11911), (6106, 11080)]