254278843

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 359009280

約数和(自身を除く): 104730437

約数列:

[1, 7, 13, 17, 19, 41, 91, 119, 133, 211, 221, 247, 287, 323, 533, 697, 779, 1477, 1547, 1729, 2261, 2743, 3587, 3731, 4009, 4199, 4879, 5453, 8651, 9061, 10127, 13243, 19201, 25109, 28063, 29393, 46631, 52117, 60557, 63427, 68153, 70889, 92701, 112463, 147067, 164369, 172159, 326417, 364819, 477071, 787241, 885989, 1029469, 1150583, 1205113, 1911871, 2136797, 2794273, 6201923, 13383097, 14957579, 19559911, 36325549, 254278843]

約数ペア:

[(1, 254278843), (7, 36325549), (13, 19559911), (17, 14957579), (19, 13383097), (41, 6201923), (91, 2794273), (119, 2136797), (133, 1911871), (211, 1205113), (221, 1150583), (247, 1029469), (287, 885989), (323, 787241), (533, 477071), (697, 364819), (779, 326417), (1477, 172159), (1547, 164369), (1729, 147067), (2261, 112463), (2743, 92701), (3587, 70889), (3731, 68153), (4009, 63427), (4199, 60557), (4879, 52117), (5453, 46631), (8651, 29393), (9061, 28063), (10127, 25109), (13243, 19201)]