68920720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{271}}^1$

素因数の和:329

約数の個数: 120

約数和(自身を含む): 186380928

約数和(自身を除く): 117460208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 271, 272, 289, 340, 374, 440, 542, 578, 680, 748, 880, 935, 1084, 1156, 1355, 1360, 1445, 1496, 1870, 2168, 2312, 2710, 2890, 2981, 2992, 3179, 3740, 4336, 4607, 4624, 5420, 5780, 5962, 6358, 7480, 9214, 10840, 11560, 11924, 12716, 14905, 14960, 15895, 18428, 21680, 23035, 23120, 23848, 25432, 29810, 31790, 36856, 46070, 47696, 50677, 50864, 59620, 63580, 73712, 78319, 92140, 101354, 119240, 127160, 156638, 184280, 202708, 238480, 253385, 254320, 313276, 368560, 391595, 405416, 506770, 626552, 783190, 810832, 861509, 1013540, 1253104, 1566380, 1723018, 2027080, 3132760, 3446036, 4054160, 4307545, 6265520, 6892072, 8615090, 13784144, 17230180, 34460360, 68920720]

約数ペア:

[(1, 68920720), (2, 34460360), (4, 17230180), (5, 13784144), (8, 8615090), (10, 6892072), (11, 6265520), (16, 4307545), (17, 4054160), (20, 3446036), (22, 3132760), (34, 2027080), (40, 1723018), (44, 1566380), (55, 1253104), (68, 1013540), (80, 861509), (85, 810832), (88, 783190), (110, 626552), (136, 506770), (170, 405416), (176, 391595), (187, 368560), (220, 313276), (271, 254320), (272, 253385), (289, 238480), (340, 202708), (374, 184280), (440, 156638), (542, 127160), (578, 119240), (680, 101354), (748, 92140), (880, 78319), (935, 73712), (1084, 63580), (1156, 59620), (1355, 50864), (1360, 50677), (1445, 47696), (1496, 46070), (1870, 36856), (2168, 31790), (2312, 29810), (2710, 25432), (2890, 23848), (2981, 23120), (2992, 23035), (3179, 21680), (3740, 18428), (4336, 15895), (4607, 14960), (4624, 14905), (5420, 12716), (5780, 11924), (5962, 11560), (6358, 10840), (7480, 9214)]