687680280

素因数分解:

$2^3\times 3^7\times 5^1\times 7^1\times {\mathrm{1123}}^1$

素因数の和:1162

約数の個数: 256

約数和(自身を含む): 2654438400

約数和(自身を除く): 1966758120

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, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 648, 729, 756, 810, 840, 945, 972, 1080, 1123, 1134, 1215, 1260, 1458, 1512, 1620, 1701, 1890, 1944, 2187, 2246, 2268, 2430, 2520, 2835, 2916, 3240, 3369, 3402, 3645, 3780, 4374, 4492, 4536, 4860, 5103, 5615, 5670, 5832, 6738, 6804, 7290, 7560, 7861, 8505, 8748, 8984, 9720, 10107, 10206, 10935, 11230, 11340, 13476, 13608, 14580, 15309, 15722, 16845, 17010, 17496, 20214, 20412, 21870, 22460, 22680, 23583, 25515, 26952, 29160, 30321, 30618, 31444, 33690, 34020, 39305, 40428, 40824, 43740, 44920, 47166, 50535, 51030, 60642, 61236, 62888, 67380, 68040, 70749, 76545, 78610, 80856, 87480, 90963, 94332, 101070, 102060, 117915, 121284, 122472, 134760, 141498, 151605, 153090, 157220, 181926, 188664, 202140, 204120, 212247, 235830, 242568, 272889, 282996, 303210, 306180, 314440, 353745, 363852, 404280, 424494, 454815, 471660, 545778, 565992, 606420, 612360, 636741, 707490, 727704, 818667, 848988, 909630, 943320, 1061235, 1091556, 1212840, 1273482, 1364445, 1414980, 1637334, 1697976, 1819260, 1910223, 2122470, 2183112, 2456001, 2546964, 2728890, 2829960, 3183705, 3274668, 3638520, 3820446, 4093335, 4244940, 4912002, 5093928, 5457780, 5730669, 6367410, 6549336, 7640892, 8186670, 8489880, 9551115, 9824004, 10915560, 11461338, 12280005, 12734820, 15281784, 16373340, 17192007, 19102230, 19648008, 22922676, 24560010, 25469640, 28653345, 32746680, 34384014, 38204460, 45845352, 49120020, 57306690, 68768028, 76408920, 85960035, 98240040, 114613380, 137536056, 171920070, 229226760, 343840140, 687680280]

約数ペア:

[(1, 687680280), (2, 343840140), (3, 229226760), (4, 171920070), (5, 137536056), (6, 114613380), (7, 98240040), (8, 85960035), (9, 76408920), (10, 68768028), (12, 57306690), (14, 49120020), (15, 45845352), (18, 38204460), (20, 34384014), (21, 32746680), (24, 28653345), (27, 25469640), (28, 24560010), (30, 22922676), (35, 19648008), (36, 19102230), (40, 17192007), (42, 16373340), (45, 15281784), (54, 12734820), (56, 12280005), (60, 11461338), (63, 10915560), (70, 9824004), (72, 9551115), (81, 8489880), (84, 8186670), (90, 7640892), (105, 6549336), (108, 6367410), (120, 5730669), (126, 5457780), (135, 5093928), (140, 4912002), (162, 4244940), (168, 4093335), (180, 3820446), (189, 3638520), (210, 3274668), (216, 3183705), (243, 2829960), (252, 2728890), (270, 2546964), (280, 2456001), (315, 2183112), (324, 2122470), (360, 1910223), (378, 1819260), (405, 1697976), (420, 1637334), (486, 1414980), (504, 1364445), (540, 1273482), (567, 1212840), (630, 1091556), (648, 1061235), (729, 943320), (756, 909630), (810, 848988), (840, 818667), (945, 727704), (972, 707490), (1080, 636741), (1123, 612360), (1134, 606420), (1215, 565992), (1260, 545778), (1458, 471660), (1512, 454815), (1620, 424494), (1701, 404280), (1890, 363852), (1944, 353745), (2187, 314440), (2246, 306180), (2268, 303210), (2430, 282996), (2520, 272889), (2835, 242568), (2916, 235830), (3240, 212247), (3369, 204120), (3402, 202140), (3645, 188664), (3780, 181926), (4374, 157220), (4492, 153090), (4536, 151605), (4860, 141498), (5103, 134760), (5615, 122472), (5670, 121284), (5832, 117915), (6738, 102060), (6804, 101070), (7290, 94332), (7560, 90963), (7861, 87480), (8505, 80856), (8748, 78610), (8984, 76545), (9720, 70749), (10107, 68040), (10206, 67380), (10935, 62888), (11230, 61236), (11340, 60642), (13476, 51030), (13608, 50535), (14580, 47166), (15309, 44920), (15722, 43740), (16845, 40824), (17010, 40428), (17496, 39305), (20214, 34020), (20412, 33690), (21870, 31444), (22460, 30618), (22680, 30321), (23583, 29160), (25515, 26952)]