248339728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 160

約数和(自身を含む): 639959040

約数和(自身を除く): 391619312

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 47, 52, 56, 76, 91, 94, 104, 112, 133, 152, 182, 188, 191, 208, 247, 266, 304, 329, 364, 376, 382, 494, 532, 611, 658, 728, 752, 764, 893, 988, 1064, 1222, 1316, 1337, 1456, 1528, 1729, 1786, 1976, 2128, 2444, 2483, 2632, 2674, 3056, 3458, 3572, 3629, 3952, 4277, 4888, 4966, 5264, 5348, 6251, 6916, 7144, 7258, 8554, 8977, 9776, 9932, 10696, 11609, 12502, 13832, 14288, 14516, 17108, 17381, 17954, 19864, 21392, 23218, 25004, 25403, 27664, 29032, 34216, 34762, 35908, 39728, 46436, 47177, 50008, 50806, 58064, 62839, 68432, 69524, 71816, 81263, 92872, 94354, 100016, 101612, 116701, 125678, 139048, 143632, 162526, 170563, 185744, 188708, 203224, 233402, 251356, 278096, 325052, 330239, 341126, 377416, 406448, 466804, 502712, 650104, 660478, 682252, 754832, 816907, 933608, 1005424, 1193941, 1300208, 1320956, 1364504, 1633814, 1867216, 2217319, 2387882, 2641912, 2729008, 3267628, 4434638, 4775764, 5283824, 6535256, 8869276, 9551528, 13070512, 15521233, 17738552, 19103056, 31042466, 35477104, 62084932, 124169864, 248339728]

約数ペア:

[(1, 248339728), (2, 124169864), (4, 62084932), (7, 35477104), (8, 31042466), (13, 19103056), (14, 17738552), (16, 15521233), (19, 13070512), (26, 9551528), (28, 8869276), (38, 6535256), (47, 5283824), (52, 4775764), (56, 4434638), (76, 3267628), (91, 2729008), (94, 2641912), (104, 2387882), (112, 2217319), (133, 1867216), (152, 1633814), (182, 1364504), (188, 1320956), (191, 1300208), (208, 1193941), (247, 1005424), (266, 933608), (304, 816907), (329, 754832), (364, 682252), (376, 660478), (382, 650104), (494, 502712), (532, 466804), (611, 406448), (658, 377416), (728, 341126), (752, 330239), (764, 325052), (893, 278096), (988, 251356), (1064, 233402), (1222, 203224), (1316, 188708), (1337, 185744), (1456, 170563), (1528, 162526), (1729, 143632), (1786, 139048), (1976, 125678), (2128, 116701), (2444, 101612), (2483, 100016), (2632, 94354), (2674, 92872), (3056, 81263), (3458, 71816), (3572, 69524), (3629, 68432), (3952, 62839), (4277, 58064), (4888, 50806), (4966, 50008), (5264, 47177), (5348, 46436), (6251, 39728), (6916, 35908), (7144, 34762), (7258, 34216), (8554, 29032), (8977, 27664), (9776, 25403), (9932, 25004), (10696, 23218), (11609, 21392), (12502, 19864), (13832, 17954), (14288, 17381), (14516, 17108)]