280000448

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:530

約数の個数: 112

約数和(自身を含む): 690945024

約数和(自身を除く): 410944576

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 131, 182, 208, 224, 262, 364, 367, 416, 448, 524, 728, 734, 832, 917, 1048, 1456, 1468, 1703, 1834, 2096, 2569, 2912, 2936, 3406, 3668, 4192, 4771, 5138, 5824, 5872, 6812, 7336, 8384, 9542, 10276, 11744, 11921, 13624, 14672, 19084, 20552, 23488, 23842, 27248, 29344, 33397, 38168, 41104, 47684, 48077, 54496, 58688, 66794, 76336, 82208, 95368, 96154, 108992, 133588, 152672, 164416, 190736, 192308, 267176, 305344, 336539, 381472, 384616, 534352, 625001, 673078, 762944, 769232, 1068704, 1250002, 1346156, 1538464, 2137408, 2500004, 2692312, 3076928, 4375007, 5000008, 5384624, 8750014, 10000016, 10769248, 17500028, 20000032, 21538496, 35000056, 40000064, 70000112, 140000224, 280000448]

約数ペア:

[(1, 280000448), (2, 140000224), (4, 70000112), (7, 40000064), (8, 35000056), (13, 21538496), (14, 20000032), (16, 17500028), (26, 10769248), (28, 10000016), (32, 8750014), (52, 5384624), (56, 5000008), (64, 4375007), (91, 3076928), (104, 2692312), (112, 2500004), (131, 2137408), (182, 1538464), (208, 1346156), (224, 1250002), (262, 1068704), (364, 769232), (367, 762944), (416, 673078), (448, 625001), (524, 534352), (728, 384616), (734, 381472), (832, 336539), (917, 305344), (1048, 267176), (1456, 192308), (1468, 190736), (1703, 164416), (1834, 152672), (2096, 133588), (2569, 108992), (2912, 96154), (2936, 95368), (3406, 82208), (3668, 76336), (4192, 66794), (4771, 58688), (5138, 54496), (5824, 48077), (5872, 47684), (6812, 41104), (7336, 38168), (8384, 33397), (9542, 29344), (10276, 27248), (11744, 23842), (11921, 23488), (13624, 20552), (14672, 19084)]