278045404

素因数分解:

$2^2\times 7^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 120

約数和(自身を含む): 652207248

約数和(自身を除く): 374161844

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 91, 98, 119, 131, 182, 196, 221, 238, 262, 343, 364, 442, 476, 524, 637, 686, 833, 884, 917, 1274, 1372, 1547, 1666, 1703, 1834, 2227, 2401, 2548, 3094, 3332, 3406, 3668, 4454, 4459, 4802, 5831, 6188, 6419, 6812, 8908, 8918, 9604, 10829, 11662, 11921, 12838, 15589, 17836, 21658, 23324, 23842, 25676, 28951, 31178, 31213, 40817, 43316, 44933, 47684, 57902, 62356, 62426, 75803, 81634, 83447, 89866, 109123, 115804, 124852, 151606, 163268, 166894, 179732, 202657, 218246, 303212, 314531, 333788, 405314, 436492, 530621, 584129, 629062, 763861, 810628, 1061242, 1168258, 1258124, 1418599, 1527722, 2122484, 2336516, 2837198, 3055444, 4088903, 5347027, 5674396, 8177806, 9930193, 10694054, 16355612, 19860386, 21388108, 39720772, 69511351, 139022702, 278045404]

約数ペア:

[(1, 278045404), (2, 139022702), (4, 69511351), (7, 39720772), (13, 21388108), (14, 19860386), (17, 16355612), (26, 10694054), (28, 9930193), (34, 8177806), (49, 5674396), (52, 5347027), (68, 4088903), (91, 3055444), (98, 2837198), (119, 2336516), (131, 2122484), (182, 1527722), (196, 1418599), (221, 1258124), (238, 1168258), (262, 1061242), (343, 810628), (364, 763861), (442, 629062), (476, 584129), (524, 530621), (637, 436492), (686, 405314), (833, 333788), (884, 314531), (917, 303212), (1274, 218246), (1372, 202657), (1547, 179732), (1666, 166894), (1703, 163268), (1834, 151606), (2227, 124852), (2401, 115804), (2548, 109123), (3094, 89866), (3332, 83447), (3406, 81634), (3668, 75803), (4454, 62426), (4459, 62356), (4802, 57902), (5831, 47684), (6188, 44933), (6419, 43316), (6812, 40817), (8908, 31213), (8918, 31178), (9604, 28951), (10829, 25676), (11662, 23842), (11921, 23324), (12838, 21658), (15589, 17836)]