256453848

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:646

約数の個数: 144

約数和(自身を含む): 814862880

約数和(自身を除く): 558409032

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 157, 168, 196, 252, 294, 314, 392, 441, 463, 471, 504, 588, 628, 882, 926, 942, 1099, 1176, 1256, 1389, 1413, 1764, 1852, 1884, 2198, 2778, 2826, 3241, 3297, 3528, 3704, 3768, 4167, 4396, 5556, 5652, 6482, 6594, 7693, 8334, 8792, 9723, 9891, 11112, 11304, 12964, 13188, 15386, 16668, 19446, 19782, 22687, 23079, 25928, 26376, 29169, 30772, 33336, 38892, 39564, 45374, 46158, 58338, 61544, 68061, 69237, 72691, 77784, 79128, 90748, 92316, 116676, 136122, 138474, 145382, 181496, 184632, 204183, 218073, 233352, 272244, 276948, 290764, 408366, 436146, 508837, 544488, 553896, 581528, 654219, 816732, 872292, 1017674, 1308438, 1526511, 1633464, 1744584, 2035348, 2616876, 3053022, 3561859, 4070696, 4579533, 5233752, 6106044, 7123718, 9159066, 10685577, 12212088, 14247436, 18318132, 21371154, 28494872, 32056731, 36636264, 42742308, 64113462, 85484616, 128226924, 256453848]

約数ペア:

[(1, 256453848), (2, 128226924), (3, 85484616), (4, 64113462), (6, 42742308), (7, 36636264), (8, 32056731), (9, 28494872), (12, 21371154), (14, 18318132), (18, 14247436), (21, 12212088), (24, 10685577), (28, 9159066), (36, 7123718), (42, 6106044), (49, 5233752), (56, 4579533), (63, 4070696), (72, 3561859), (84, 3053022), (98, 2616876), (126, 2035348), (147, 1744584), (157, 1633464), (168, 1526511), (196, 1308438), (252, 1017674), (294, 872292), (314, 816732), (392, 654219), (441, 581528), (463, 553896), (471, 544488), (504, 508837), (588, 436146), (628, 408366), (882, 290764), (926, 276948), (942, 272244), (1099, 233352), (1176, 218073), (1256, 204183), (1389, 184632), (1413, 181496), (1764, 145382), (1852, 138474), (1884, 136122), (2198, 116676), (2778, 92316), (2826, 90748), (3241, 79128), (3297, 77784), (3528, 72691), (3704, 69237), (3768, 68061), (4167, 61544), (4396, 58338), (5556, 46158), (5652, 45374), (6482, 39564), (6594, 38892), (7693, 33336), (8334, 30772), (8792, 29169), (9723, 26376), (9891, 25928), (11112, 23079), (11304, 22687), (12964, 19782), (13188, 19446), (15386, 16668)]