68389640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 182891520

約数和(自身を除く): 114501880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 41, 44, 55, 68, 82, 85, 88, 110, 136, 164, 170, 187, 205, 220, 223, 328, 340, 374, 410, 440, 446, 451, 680, 697, 748, 820, 892, 902, 935, 1115, 1394, 1496, 1640, 1784, 1804, 1870, 2230, 2255, 2453, 2788, 3485, 3608, 3740, 3791, 4460, 4510, 4906, 5576, 6970, 7480, 7582, 7667, 8920, 9020, 9143, 9812, 12265, 13940, 15164, 15334, 18040, 18286, 18955, 19624, 24530, 27880, 30328, 30668, 36572, 37910, 38335, 41701, 45715, 49060, 61336, 73144, 75820, 76670, 83402, 91430, 98120, 100573, 151640, 153340, 155431, 166804, 182860, 201146, 208505, 306680, 310862, 333608, 365720, 402292, 417010, 502865, 621724, 777155, 804584, 834020, 1005730, 1243448, 1554310, 1668040, 1709741, 2011460, 3108620, 3419482, 4022920, 6217240, 6838964, 8548705, 13677928, 17097410, 34194820, 68389640]

約数ペア:

[(1, 68389640), (2, 34194820), (4, 17097410), (5, 13677928), (8, 8548705), (10, 6838964), (11, 6217240), (17, 4022920), (20, 3419482), (22, 3108620), (34, 2011460), (40, 1709741), (41, 1668040), (44, 1554310), (55, 1243448), (68, 1005730), (82, 834020), (85, 804584), (88, 777155), (110, 621724), (136, 502865), (164, 417010), (170, 402292), (187, 365720), (205, 333608), (220, 310862), (223, 306680), (328, 208505), (340, 201146), (374, 182860), (410, 166804), (440, 155431), (446, 153340), (451, 151640), (680, 100573), (697, 98120), (748, 91430), (820, 83402), (892, 76670), (902, 75820), (935, 73144), (1115, 61336), (1394, 49060), (1496, 45715), (1640, 41701), (1784, 38335), (1804, 37910), (1870, 36572), (2230, 30668), (2255, 30328), (2453, 27880), (2788, 24530), (3485, 19624), (3608, 18955), (3740, 18286), (3791, 18040), (4460, 15334), (4510, 15164), (4906, 13940), (5576, 12265), (6970, 9812), (7480, 9143), (7582, 9020), (7667, 8920)]