255123040

素因数分解:

$2^5\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1609}}^1$

素因数の和:2615

約数の個数: 48

約数和(自身を含む): 603711360

約数和(自身を除く): 348588320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 991, 1609, 1982, 3218, 3964, 4955, 6436, 7928, 8045, 9910, 12872, 15856, 16090, 19820, 25744, 31712, 32180, 39640, 51488, 64360, 79280, 128720, 158560, 257440, 1594519, 3189038, 6378076, 7972595, 12756152, 15945190, 25512304, 31890380, 51024608, 63780760, 127561520, 255123040]

約数ペア:

[(1, 255123040), (2, 127561520), (4, 63780760), (5, 51024608), (8, 31890380), (10, 25512304), (16, 15945190), (20, 12756152), (32, 7972595), (40, 6378076), (80, 3189038), (160, 1594519), (991, 257440), (1609, 158560), (1982, 128720), (3218, 79280), (3964, 64360), (4955, 51488), (6436, 39640), (7928, 32180), (8045, 31712), (9910, 25744), (12872, 19820), (15856, 16090)]