257928160

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:393

約数の個数: 144

約数和(自身を含む): 716706144

約数和(自身を除く): 458777984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 167, 196, 197, 224, 245, 280, 334, 392, 394, 490, 560, 668, 784, 788, 835, 980, 985, 1120, 1169, 1336, 1379, 1568, 1576, 1670, 1960, 1970, 2338, 2672, 2758, 3152, 3340, 3920, 3940, 4676, 5344, 5516, 5845, 6304, 6680, 6895, 7840, 7880, 8183, 9352, 9653, 11032, 11690, 13360, 13790, 15760, 16366, 18704, 19306, 22064, 23380, 26720, 27580, 31520, 32732, 32899, 37408, 38612, 40915, 44128, 46760, 48265, 55160, 65464, 65798, 77224, 81830, 93520, 96530, 110320, 130928, 131596, 154448, 163660, 164495, 187040, 193060, 220640, 230293, 261856, 263192, 308896, 327320, 328990, 386120, 460586, 526384, 654640, 657980, 772240, 921172, 1052768, 1151465, 1309280, 1315960, 1544480, 1612051, 1842344, 2302930, 2631920, 3224102, 3684688, 4605860, 5263840, 6448204, 7369376, 8060255, 9211720, 12896408, 16120510, 18423440, 25792816, 32241020, 36846880, 51585632, 64482040, 128964080, 257928160]

約数ペア:

[(1, 257928160), (2, 128964080), (4, 64482040), (5, 51585632), (7, 36846880), (8, 32241020), (10, 25792816), (14, 18423440), (16, 16120510), (20, 12896408), (28, 9211720), (32, 8060255), (35, 7369376), (40, 6448204), (49, 5263840), (56, 4605860), (70, 3684688), (80, 3224102), (98, 2631920), (112, 2302930), (140, 1842344), (160, 1612051), (167, 1544480), (196, 1315960), (197, 1309280), (224, 1151465), (245, 1052768), (280, 921172), (334, 772240), (392, 657980), (394, 654640), (490, 526384), (560, 460586), (668, 386120), (784, 328990), (788, 327320), (835, 308896), (980, 263192), (985, 261856), (1120, 230293), (1169, 220640), (1336, 193060), (1379, 187040), (1568, 164495), (1576, 163660), (1670, 154448), (1960, 131596), (1970, 130928), (2338, 110320), (2672, 96530), (2758, 93520), (3152, 81830), (3340, 77224), (3920, 65798), (3940, 65464), (4676, 55160), (5344, 48265), (5516, 46760), (5845, 44128), (6304, 40915), (6680, 38612), (6895, 37408), (7840, 32899), (7880, 32732), (8183, 31520), (9352, 27580), (9653, 26720), (11032, 23380), (11690, 22064), (13360, 19306), (13790, 18704), (15760, 16366)]