28249884

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:401

約数の個数: 120

約数和(自身を含む): 83954640

約数和(自身を除く): 55704756

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 81, 108, 114, 117, 156, 162, 171, 228, 234, 247, 324, 342, 351, 353, 468, 494, 513, 684, 702, 706, 741, 988, 1026, 1053, 1059, 1404, 1412, 1482, 1539, 2052, 2106, 2118, 2223, 2964, 3078, 3177, 4212, 4236, 4446, 4589, 6156, 6354, 6669, 6707, 8892, 9178, 9531, 12708, 13338, 13414, 13767, 18356, 19062, 20007, 20121, 26676, 26828, 27534, 28593, 38124, 40014, 40242, 41301, 55068, 57186, 60363, 80028, 80484, 82602, 87191, 114372, 120726, 123903, 165204, 174382, 181089, 241452, 247806, 261573, 348764, 362178, 371709, 495612, 523146, 543267, 724356, 743418, 784719, 1046292, 1086534, 1486836, 1569438, 2173068, 2354157, 3138876, 4708314, 7062471, 9416628, 14124942, 28249884]

約数ペア:

[(1, 28249884), (2, 14124942), (3, 9416628), (4, 7062471), (6, 4708314), (9, 3138876), (12, 2354157), (13, 2173068), (18, 1569438), (19, 1486836), (26, 1086534), (27, 1046292), (36, 784719), (38, 743418), (39, 724356), (52, 543267), (54, 523146), (57, 495612), (76, 371709), (78, 362178), (81, 348764), (108, 261573), (114, 247806), (117, 241452), (156, 181089), (162, 174382), (171, 165204), (228, 123903), (234, 120726), (247, 114372), (324, 87191), (342, 82602), (351, 80484), (353, 80028), (468, 60363), (494, 57186), (513, 55068), (684, 41301), (702, 40242), (706, 40014), (741, 38124), (988, 28593), (1026, 27534), (1053, 26828), (1059, 26676), (1404, 20121), (1412, 20007), (1482, 19062), (1539, 18356), (2052, 13767), (2106, 13414), (2118, 13338), (2223, 12708), (2964, 9531), (3078, 9178), (3177, 8892), (4212, 6707), (4236, 6669), (4446, 6354), (4589, 6156)]