68979680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{509}}^1$

素因数の和:553

約数の個数: 144

約数和(自身を含む): 205117920

約数和(自身を除く): 136138240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 160, 176, 220, 224, 242, 280, 308, 352, 385, 440, 484, 509, 560, 605, 616, 770, 847, 880, 968, 1018, 1120, 1210, 1232, 1540, 1694, 1760, 1936, 2036, 2420, 2464, 2545, 3080, 3388, 3563, 3872, 4072, 4235, 4840, 5090, 5599, 6160, 6776, 7126, 8144, 8470, 9680, 10180, 11198, 12320, 13552, 14252, 16288, 16940, 17815, 19360, 20360, 22396, 27104, 27995, 28504, 33880, 35630, 39193, 40720, 44792, 55990, 57008, 61589, 67760, 71260, 78386, 81440, 89584, 111980, 114016, 123178, 135520, 142520, 156772, 179168, 195965, 223960, 246356, 285040, 307945, 313544, 391930, 431123, 447920, 492712, 570080, 615890, 627088, 783860, 862246, 895840, 985424, 1231780, 1254176, 1567720, 1724492, 1970848, 2155615, 2463560, 3135440, 3448984, 4311230, 4927120, 6270880, 6897968, 8622460, 9854240, 13795936, 17244920, 34489840, 68979680]

約数ペア:

[(1, 68979680), (2, 34489840), (4, 17244920), (5, 13795936), (7, 9854240), (8, 8622460), (10, 6897968), (11, 6270880), (14, 4927120), (16, 4311230), (20, 3448984), (22, 3135440), (28, 2463560), (32, 2155615), (35, 1970848), (40, 1724492), (44, 1567720), (55, 1254176), (56, 1231780), (70, 985424), (77, 895840), (80, 862246), (88, 783860), (110, 627088), (112, 615890), (121, 570080), (140, 492712), (154, 447920), (160, 431123), (176, 391930), (220, 313544), (224, 307945), (242, 285040), (280, 246356), (308, 223960), (352, 195965), (385, 179168), (440, 156772), (484, 142520), (509, 135520), (560, 123178), (605, 114016), (616, 111980), (770, 89584), (847, 81440), (880, 78386), (968, 71260), (1018, 67760), (1120, 61589), (1210, 57008), (1232, 55990), (1540, 44792), (1694, 40720), (1760, 39193), (1936, 35630), (2036, 33880), (2420, 28504), (2464, 27995), (2545, 27104), (3080, 22396), (3388, 20360), (3563, 19360), (3872, 17815), (4072, 16940), (4235, 16288), (4840, 14252), (5090, 13552), (5599, 12320), (6160, 11198), (6776, 10180), (7126, 9680), (8144, 8470)]