68640880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1013}}^1$

素因数の和:1055

約数の個数: 120

約数和(自身を含む): 200674656

約数和(自身を除く): 132033776

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 176, 220, 242, 280, 308, 385, 440, 484, 560, 605, 616, 770, 847, 880, 968, 1013, 1210, 1232, 1540, 1694, 1936, 2026, 2420, 3080, 3388, 4052, 4235, 4840, 5065, 6160, 6776, 7091, 8104, 8470, 9680, 10130, 11143, 13552, 14182, 16208, 16940, 20260, 22286, 28364, 33880, 35455, 40520, 44572, 55715, 56728, 67760, 70910, 78001, 81040, 89144, 111430, 113456, 122573, 141820, 156002, 178288, 222860, 245146, 283640, 312004, 390005, 445720, 490292, 567280, 612865, 624008, 780010, 858011, 891440, 980584, 1225730, 1248016, 1560020, 1716022, 1961168, 2451460, 3120040, 3432044, 4290055, 4902920, 6240080, 6864088, 8580110, 9805840, 13728176, 17160220, 34320440, 68640880]

約数ペア:

[(1, 68640880), (2, 34320440), (4, 17160220), (5, 13728176), (7, 9805840), (8, 8580110), (10, 6864088), (11, 6240080), (14, 4902920), (16, 4290055), (20, 3432044), (22, 3120040), (28, 2451460), (35, 1961168), (40, 1716022), (44, 1560020), (55, 1248016), (56, 1225730), (70, 980584), (77, 891440), (80, 858011), (88, 780010), (110, 624008), (112, 612865), (121, 567280), (140, 490292), (154, 445720), (176, 390005), (220, 312004), (242, 283640), (280, 245146), (308, 222860), (385, 178288), (440, 156002), (484, 141820), (560, 122573), (605, 113456), (616, 111430), (770, 89144), (847, 81040), (880, 78001), (968, 70910), (1013, 67760), (1210, 56728), (1232, 55715), (1540, 44572), (1694, 40520), (1936, 35455), (2026, 33880), (2420, 28364), (3080, 22286), (3388, 20260), (4052, 16940), (4235, 16208), (4840, 14182), (5065, 13552), (6160, 11143), (6776, 10130), (7091, 9680), (8104, 8470)]