80080880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 160

約数和(自身を含む): 221289408

約数和(自身を除く): 141208528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 53, 55, 68, 80, 85, 88, 101, 106, 110, 136, 170, 176, 187, 202, 212, 220, 265, 272, 340, 374, 404, 424, 440, 505, 530, 583, 680, 748, 808, 848, 880, 901, 935, 1010, 1060, 1111, 1166, 1360, 1496, 1616, 1717, 1802, 1870, 2020, 2120, 2222, 2332, 2915, 2992, 3434, 3604, 3740, 4040, 4240, 4444, 4505, 4664, 5353, 5555, 5830, 6868, 7208, 7480, 8080, 8585, 8888, 9010, 9328, 9911, 10706, 11110, 11660, 13736, 14416, 14960, 17170, 17776, 18020, 18887, 19822, 21412, 22220, 23320, 26765, 27472, 34340, 36040, 37774, 39644, 42824, 44440, 46640, 49555, 53530, 58883, 68680, 72080, 75548, 79288, 85648, 88880, 91001, 94435, 99110, 107060, 117766, 137360, 151096, 158576, 182002, 188870, 198220, 214120, 235532, 294415, 302192, 364004, 377740, 396440, 428240, 455005, 471064, 588830, 728008, 755480, 792880, 910010, 942128, 1001011, 1177660, 1456016, 1510960, 1820020, 2002022, 2355320, 3640040, 4004044, 4710640, 5005055, 7280080, 8008088, 10010110, 16016176, 20020220, 40040440, 80080880]

約数ペア:

[(1, 80080880), (2, 40040440), (4, 20020220), (5, 16016176), (8, 10010110), (10, 8008088), (11, 7280080), (16, 5005055), (17, 4710640), (20, 4004044), (22, 3640040), (34, 2355320), (40, 2002022), (44, 1820020), (53, 1510960), (55, 1456016), (68, 1177660), (80, 1001011), (85, 942128), (88, 910010), (101, 792880), (106, 755480), (110, 728008), (136, 588830), (170, 471064), (176, 455005), (187, 428240), (202, 396440), (212, 377740), (220, 364004), (265, 302192), (272, 294415), (340, 235532), (374, 214120), (404, 198220), (424, 188870), (440, 182002), (505, 158576), (530, 151096), (583, 137360), (680, 117766), (748, 107060), (808, 99110), (848, 94435), (880, 91001), (901, 88880), (935, 85648), (1010, 79288), (1060, 75548), (1111, 72080), (1166, 68680), (1360, 58883), (1496, 53530), (1616, 49555), (1717, 46640), (1802, 44440), (1870, 42824), (2020, 39644), (2120, 37774), (2222, 36040), (2332, 34340), (2915, 27472), (2992, 26765), (3434, 23320), (3604, 22220), (3740, 21412), (4040, 19822), (4240, 18887), (4444, 18020), (4505, 17776), (4664, 17170), (5353, 14960), (5555, 14416), (5830, 13736), (6868, 11660), (7208, 11110), (7480, 10706), (8080, 9911), (8585, 9328), (8888, 9010)]