81750060

素因数分解:

$2^2\times 3^8\times 5^1\times 7^1\times {\mathrm{89}}^1$

素因数の和:129

約数の個数: 216

約数和(自身を含む): 297591840

約数和(自身を除く): 215841780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 89, 90, 105, 108, 126, 135, 140, 162, 178, 180, 189, 210, 243, 252, 267, 270, 315, 324, 356, 378, 405, 420, 445, 486, 534, 540, 567, 623, 630, 729, 756, 801, 810, 890, 945, 972, 1068, 1134, 1215, 1246, 1260, 1335, 1458, 1602, 1620, 1701, 1780, 1869, 1890, 2187, 2268, 2403, 2430, 2492, 2670, 2835, 2916, 3115, 3204, 3402, 3645, 3738, 3780, 4005, 4374, 4806, 4860, 5103, 5340, 5607, 5670, 6230, 6561, 6804, 7209, 7290, 7476, 8010, 8505, 8748, 9345, 9612, 10206, 10935, 11214, 11340, 12015, 12460, 13122, 14418, 14580, 15309, 16020, 16821, 17010, 18690, 20412, 21627, 21870, 22428, 24030, 25515, 26244, 28035, 28836, 30618, 32805, 33642, 34020, 36045, 37380, 43254, 43740, 45927, 48060, 50463, 51030, 56070, 61236, 64881, 65610, 67284, 72090, 76545, 84105, 86508, 91854, 100926, 102060, 108135, 112140, 129762, 131220, 144180, 151389, 153090, 168210, 183708, 194643, 201852, 216270, 229635, 252315, 259524, 302778, 306180, 324405, 336420, 389286, 432540, 454167, 459270, 504630, 583929, 605556, 648810, 756945, 778572, 908334, 918540, 973215, 1009260, 1167858, 1297620, 1362501, 1513890, 1816668, 1946430, 2270835, 2335716, 2725002, 2919645, 3027780, 3892860, 4087503, 4541670, 5450004, 5839290, 6812505, 8175006, 9083340, 11678580, 13625010, 16350012, 20437515, 27250020, 40875030, 81750060]

約数ペア:

[(1, 81750060), (2, 40875030), (3, 27250020), (4, 20437515), (5, 16350012), (6, 13625010), (7, 11678580), (9, 9083340), (10, 8175006), (12, 6812505), (14, 5839290), (15, 5450004), (18, 4541670), (20, 4087503), (21, 3892860), (27, 3027780), (28, 2919645), (30, 2725002), (35, 2335716), (36, 2270835), (42, 1946430), (45, 1816668), (54, 1513890), (60, 1362501), (63, 1297620), (70, 1167858), (81, 1009260), (84, 973215), (89, 918540), (90, 908334), (105, 778572), (108, 756945), (126, 648810), (135, 605556), (140, 583929), (162, 504630), (178, 459270), (180, 454167), (189, 432540), (210, 389286), (243, 336420), (252, 324405), (267, 306180), (270, 302778), (315, 259524), (324, 252315), (356, 229635), (378, 216270), (405, 201852), (420, 194643), (445, 183708), (486, 168210), (534, 153090), (540, 151389), (567, 144180), (623, 131220), (630, 129762), (729, 112140), (756, 108135), (801, 102060), (810, 100926), (890, 91854), (945, 86508), (972, 84105), (1068, 76545), (1134, 72090), (1215, 67284), (1246, 65610), (1260, 64881), (1335, 61236), (1458, 56070), (1602, 51030), (1620, 50463), (1701, 48060), (1780, 45927), (1869, 43740), (1890, 43254), (2187, 37380), (2268, 36045), (2403, 34020), (2430, 33642), (2492, 32805), (2670, 30618), (2835, 28836), (2916, 28035), (3115, 26244), (3204, 25515), (3402, 24030), (3645, 22428), (3738, 21870), (3780, 21627), (4005, 20412), (4374, 18690), (4806, 17010), (4860, 16821), (5103, 16020), (5340, 15309), (5607, 14580), (5670, 14418), (6230, 13122), (6561, 12460), (6804, 12015), (7209, 11340), (7290, 11214), (7476, 10935), (8010, 10206), (8505, 9612), (8748, 9345)]