68288660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 180169920

約数和(自身を除く): 111881260

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 31, 34, 38, 44, 55, 62, 68, 76, 85, 95, 110, 124, 155, 170, 187, 190, 209, 220, 310, 323, 340, 341, 374, 380, 418, 527, 589, 620, 646, 682, 748, 836, 935, 961, 1045, 1054, 1178, 1292, 1364, 1615, 1705, 1870, 1922, 2090, 2108, 2356, 2635, 2945, 3230, 3410, 3553, 3740, 3844, 4180, 4805, 5270, 5797, 5890, 6460, 6479, 6820, 7106, 9610, 10013, 10540, 10571, 11594, 11780, 12958, 14212, 16337, 17765, 18259, 19220, 20026, 21142, 23188, 25916, 28985, 32395, 32674, 35530, 36518, 40052, 42284, 50065, 52855, 57970, 64790, 65348, 71060, 73036, 81685, 91295, 100130, 105710, 110143, 115940, 129580, 163370, 179707, 182590, 200260, 200849, 211420, 220286, 310403, 326740, 359414, 365180, 401698, 440572, 550715, 620806, 718828, 803396, 898535, 1004245, 1101430, 1241612, 1552015, 1797070, 2008490, 2202860, 3104030, 3414433, 3594140, 4016980, 6208060, 6828866, 13657732, 17072165, 34144330, 68288660]

約数ペア:

[(1, 68288660), (2, 34144330), (4, 17072165), (5, 13657732), (10, 6828866), (11, 6208060), (17, 4016980), (19, 3594140), (20, 3414433), (22, 3104030), (31, 2202860), (34, 2008490), (38, 1797070), (44, 1552015), (55, 1241612), (62, 1101430), (68, 1004245), (76, 898535), (85, 803396), (95, 718828), (110, 620806), (124, 550715), (155, 440572), (170, 401698), (187, 365180), (190, 359414), (209, 326740), (220, 310403), (310, 220286), (323, 211420), (340, 200849), (341, 200260), (374, 182590), (380, 179707), (418, 163370), (527, 129580), (589, 115940), (620, 110143), (646, 105710), (682, 100130), (748, 91295), (836, 81685), (935, 73036), (961, 71060), (1045, 65348), (1054, 64790), (1178, 57970), (1292, 52855), (1364, 50065), (1615, 42284), (1705, 40052), (1870, 36518), (1922, 35530), (2090, 32674), (2108, 32395), (2356, 28985), (2635, 25916), (2945, 23188), (3230, 21142), (3410, 20026), (3553, 19220), (3740, 18259), (3844, 17765), (4180, 16337), (4805, 14212), (5270, 12958), (5797, 11780), (5890, 11594), (6460, 10571), (6479, 10540), (6820, 10013), (7106, 9610)]