280303618

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 72

約数和(自身を含む): 536187600

約数和(自身を除く): 255883982

約数列:

[1, 2, 7, 14, 19, 29, 38, 49, 58, 98, 133, 179, 203, 266, 358, 406, 551, 841, 931, 1102, 1253, 1421, 1682, 1862, 2506, 2842, 3401, 3857, 5191, 5887, 6802, 7714, 8771, 10382, 11774, 15979, 17542, 23807, 26999, 31958, 36337, 41209, 47614, 53998, 72674, 82418, 98629, 111853, 150539, 166649, 197258, 223706, 254359, 301078, 333298, 508718, 690403, 782971, 1053773, 1380806, 1565942, 2107546, 2860241, 4832821, 5720482, 7376411, 9665642, 14752822, 20021687, 40043374, 140151809, 280303618]

約数ペア:

[(1, 280303618), (2, 140151809), (7, 40043374), (14, 20021687), (19, 14752822), (29, 9665642), (38, 7376411), (49, 5720482), (58, 4832821), (98, 2860241), (133, 2107546), (179, 1565942), (203, 1380806), (266, 1053773), (358, 782971), (406, 690403), (551, 508718), (841, 333298), (931, 301078), (1102, 254359), (1253, 223706), (1421, 197258), (1682, 166649), (1862, 150539), (2506, 111853), (2842, 98629), (3401, 82418), (3857, 72674), (5191, 53998), (5887, 47614), (6802, 41209), (7714, 36337), (8771, 31958), (10382, 26999), (11774, 23807), (15979, 17542)]