647701920

素因数分解:

$2^5\times 3^8\times 5^1\times {\mathrm{617}}^1$

素因数の和:656

約数の個数: 216

約数和(自身を含む): 2298896964

約数和(自身を除く): 1651195044

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 617, 648, 720, 729, 810, 864, 972, 1080, 1215, 1234, 1296, 1440, 1458, 1620, 1851, 1944, 2160, 2187, 2430, 2468, 2592, 2916, 3085, 3240, 3645, 3702, 3888, 4320, 4374, 4860, 4936, 5553, 5832, 6170, 6480, 6561, 7290, 7404, 7776, 8748, 9255, 9720, 9872, 10935, 11106, 11664, 12340, 12960, 13122, 14580, 14808, 16659, 17496, 18510, 19440, 19744, 21870, 22212, 23328, 24680, 26244, 27765, 29160, 29616, 32805, 33318, 34992, 37020, 38880, 43740, 44424, 49360, 49977, 52488, 55530, 58320, 59232, 65610, 66636, 69984, 74040, 83295, 87480, 88848, 98720, 99954, 104976, 111060, 116640, 131220, 133272, 148080, 149931, 166590, 174960, 177696, 199908, 209952, 222120, 249885, 262440, 266544, 296160, 299862, 333180, 349920, 399816, 444240, 449793, 499770, 524880, 533088, 599724, 666360, 749655, 799632, 888480, 899586, 999540, 1049760, 1199448, 1332720, 1349379, 1499310, 1599264, 1799172, 1999080, 2248965, 2398896, 2665440, 2698758, 2998620, 3598344, 3998160, 4048137, 4497930, 4797792, 5397516, 5997240, 6746895, 7196688, 7996320, 8096274, 8995860, 10795032, 11994480, 13493790, 14393376, 16192548, 17991720, 20240685, 21590064, 23988960, 26987580, 32385096, 35983440, 40481370, 43180128, 53975160, 64770192, 71966880, 80962740, 107950320, 129540384, 161925480, 215900640, 323850960, 647701920]

約数ペア:

[(1, 647701920), (2, 323850960), (3, 215900640), (4, 161925480), (5, 129540384), (6, 107950320), (8, 80962740), (9, 71966880), (10, 64770192), (12, 53975160), (15, 43180128), (16, 40481370), (18, 35983440), (20, 32385096), (24, 26987580), (27, 23988960), (30, 21590064), (32, 20240685), (36, 17991720), (40, 16192548), (45, 14393376), (48, 13493790), (54, 11994480), (60, 10795032), (72, 8995860), (80, 8096274), (81, 7996320), (90, 7196688), (96, 6746895), (108, 5997240), (120, 5397516), (135, 4797792), (144, 4497930), (160, 4048137), (162, 3998160), (180, 3598344), (216, 2998620), (240, 2698758), (243, 2665440), (270, 2398896), (288, 2248965), (324, 1999080), (360, 1799172), (405, 1599264), (432, 1499310), (480, 1349379), (486, 1332720), (540, 1199448), (617, 1049760), (648, 999540), (720, 899586), (729, 888480), (810, 799632), (864, 749655), (972, 666360), (1080, 599724), (1215, 533088), (1234, 524880), (1296, 499770), (1440, 449793), (1458, 444240), (1620, 399816), (1851, 349920), (1944, 333180), (2160, 299862), (2187, 296160), (2430, 266544), (2468, 262440), (2592, 249885), (2916, 222120), (3085, 209952), (3240, 199908), (3645, 177696), (3702, 174960), (3888, 166590), (4320, 149931), (4374, 148080), (4860, 133272), (4936, 131220), (5553, 116640), (5832, 111060), (6170, 104976), (6480, 99954), (6561, 98720), (7290, 88848), (7404, 87480), (7776, 83295), (8748, 74040), (9255, 69984), (9720, 66636), (9872, 65610), (10935, 59232), (11106, 58320), (11664, 55530), (12340, 52488), (12960, 49977), (13122, 49360), (14580, 44424), (14808, 43740), (16659, 38880), (17496, 37020), (18510, 34992), (19440, 33318), (19744, 32805), (21870, 29616), (22212, 29160), (23328, 27765), (24680, 26244)]