280265048

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 677376000

約数和(自身を除く): 397110952

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 31, 38, 56, 58, 62, 76, 116, 124, 133, 152, 203, 217, 232, 248, 266, 293, 406, 434, 532, 551, 586, 589, 812, 868, 899, 1064, 1102, 1172, 1178, 1624, 1736, 1798, 2051, 2204, 2344, 2356, 3596, 3857, 4102, 4123, 4408, 4712, 5567, 6293, 7192, 7714, 8204, 8246, 8497, 9083, 11134, 12586, 15428, 16408, 16492, 16994, 17081, 18166, 22268, 25172, 30856, 32984, 33988, 34162, 36332, 38969, 44536, 50344, 59479, 63581, 67976, 68324, 72664, 77938, 118958, 119567, 127162, 136648, 155876, 161443, 172577, 237916, 239134, 254324, 263407, 311752, 322886, 345154, 475832, 478268, 508648, 526814, 645772, 690308, 956536, 1053628, 1130101, 1208039, 1291544, 1380616, 1843849, 2107256, 2260202, 2416078, 3687698, 4520404, 4832156, 5004733, 7375396, 9040808, 9664312, 10009466, 14750792, 20018932, 35033131, 40037864, 70066262, 140132524, 280265048]

約数ペア:

[(1, 280265048), (2, 140132524), (4, 70066262), (7, 40037864), (8, 35033131), (14, 20018932), (19, 14750792), (28, 10009466), (29, 9664312), (31, 9040808), (38, 7375396), (56, 5004733), (58, 4832156), (62, 4520404), (76, 3687698), (116, 2416078), (124, 2260202), (133, 2107256), (152, 1843849), (203, 1380616), (217, 1291544), (232, 1208039), (248, 1130101), (266, 1053628), (293, 956536), (406, 690308), (434, 645772), (532, 526814), (551, 508648), (586, 478268), (589, 475832), (812, 345154), (868, 322886), (899, 311752), (1064, 263407), (1102, 254324), (1172, 239134), (1178, 237916), (1624, 172577), (1736, 161443), (1798, 155876), (2051, 136648), (2204, 127162), (2344, 119567), (2356, 118958), (3596, 77938), (3857, 72664), (4102, 68324), (4123, 67976), (4408, 63581), (4712, 59479), (5567, 50344), (6293, 44536), (7192, 38969), (7714, 36332), (8204, 34162), (8246, 33988), (8497, 32984), (9083, 30856), (11134, 25172), (12586, 22268), (15428, 18166), (16408, 17081), (16492, 16994)]