1278438512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{599}}^1$

素因数の和:982

約数の個数: 80

約数和(自身を含む): 2766489600

約数和(自身を除く): 1488051088

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 331, 403, 496, 599, 662, 806, 1198, 1324, 1612, 2396, 2648, 3224, 4303, 4792, 5296, 6448, 7787, 8606, 9584, 10261, 15574, 17212, 18569, 20522, 31148, 34424, 37138, 41044, 62296, 68848, 74276, 82088, 124592, 133393, 148552, 164176, 198269, 241397, 266786, 297104, 396538, 482794, 533572, 793076, 965588, 1067144, 1586152, 1931176, 2134288, 2577497, 3172304, 3862352, 5154994, 6146339, 10309988, 12292678, 20619976, 24585356, 41239952, 49170712, 79902407, 98341424, 159804814, 319609628, 639219256, 1278438512]

約数ペア:

[(1, 1278438512), (2, 639219256), (4, 319609628), (8, 159804814), (13, 98341424), (16, 79902407), (26, 49170712), (31, 41239952), (52, 24585356), (62, 20619976), (104, 12292678), (124, 10309988), (208, 6146339), (248, 5154994), (331, 3862352), (403, 3172304), (496, 2577497), (599, 2134288), (662, 1931176), (806, 1586152), (1198, 1067144), (1324, 965588), (1612, 793076), (2396, 533572), (2648, 482794), (3224, 396538), (4303, 297104), (4792, 266786), (5296, 241397), (6448, 198269), (7787, 164176), (8606, 148552), (9584, 133393), (10261, 124592), (15574, 82088), (17212, 74276), (18569, 68848), (20522, 62296), (31148, 41044), (34424, 37138)]