278986680

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{12301}}^1$

素因数の和:12331

約数の個数: 160

約数和(自身を含む): 1071750240

約数和(自身を除く): 792763560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3780, 4536, 5670, 7560, 11340, 12301, 22680, 24602, 36903, 49204, 61505, 73806, 86107, 98408, 110709, 123010, 147612, 172214, 184515, 221418, 246020, 258321, 295224, 332127, 344428, 369030, 430535, 442836, 492040, 516642, 553545, 664254, 688856, 738060, 774963, 861070, 885672, 996381, 1033284, 1107090, 1291605, 1328508, 1476120, 1549926, 1660635, 1722140, 1992762, 2066568, 2214180, 2324889, 2583210, 2657016, 3099852, 3321270, 3444280, 3874815, 3985524, 4428360, 4649778, 4981905, 5166420, 6199704, 6642540, 6974667, 7749630, 7971048, 9299556, 9963810, 10332840, 11624445, 13285080, 13949334, 15499260, 18599112, 19927620, 23248890, 27898668, 30998520, 34873335, 39855240, 46497780, 55797336, 69746670, 92995560, 139493340, 278986680]

約数ペア:

[(1, 278986680), (2, 139493340), (3, 92995560), (4, 69746670), (5, 55797336), (6, 46497780), (7, 39855240), (8, 34873335), (9, 30998520), (10, 27898668), (12, 23248890), (14, 19927620), (15, 18599112), (18, 15499260), (20, 13949334), (21, 13285080), (24, 11624445), (27, 10332840), (28, 9963810), (30, 9299556), (35, 7971048), (36, 7749630), (40, 6974667), (42, 6642540), (45, 6199704), (54, 5166420), (56, 4981905), (60, 4649778), (63, 4428360), (70, 3985524), (72, 3874815), (81, 3444280), (84, 3321270), (90, 3099852), (105, 2657016), (108, 2583210), (120, 2324889), (126, 2214180), (135, 2066568), (140, 1992762), (162, 1722140), (168, 1660635), (180, 1549926), (189, 1476120), (210, 1328508), (216, 1291605), (252, 1107090), (270, 1033284), (280, 996381), (315, 885672), (324, 861070), (360, 774963), (378, 738060), (405, 688856), (420, 664254), (504, 553545), (540, 516642), (567, 492040), (630, 442836), (648, 430535), (756, 369030), (810, 344428), (840, 332127), (945, 295224), (1080, 258321), (1134, 246020), (1260, 221418), (1512, 184515), (1620, 172214), (1890, 147612), (2268, 123010), (2520, 110709), (2835, 98408), (3240, 86107), (3780, 73806), (4536, 61505), (5670, 49204), (7560, 36903), (11340, 24602), (12301, 22680)]