1683880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 4276800

約数和(自身を除く): 2592920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 89, 110, 172, 178, 215, 220, 344, 356, 430, 440, 445, 473, 712, 860, 890, 946, 979, 1720, 1780, 1892, 1958, 2365, 3560, 3784, 3827, 3916, 4730, 4895, 7654, 7832, 9460, 9790, 15308, 18920, 19135, 19580, 30616, 38270, 39160, 42097, 76540, 84194, 153080, 168388, 210485, 336776, 420970, 841940, 1683880]

約数ペア:

[(1, 1683880), (2, 841940), (4, 420970), (5, 336776), (8, 210485), (10, 168388), (11, 153080), (20, 84194), (22, 76540), (40, 42097), (43, 39160), (44, 38270), (55, 30616), (86, 19580), (88, 19135), (89, 18920), (110, 15308), (172, 9790), (178, 9460), (215, 7832), (220, 7654), (344, 4895), (356, 4730), (430, 3916), (440, 3827), (445, 3784), (473, 3560), (712, 2365), (860, 1958), (890, 1892), (946, 1780), (979, 1720)]