256260368

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2411}}^1$

素因数の和:2512

約数の個数: 80

約数和(自身を含む): 619710336

約数和(自身を除く): 363449968

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 73, 91, 104, 112, 146, 182, 208, 292, 364, 511, 584, 728, 949, 1022, 1168, 1456, 1898, 2044, 2411, 3796, 4088, 4822, 6643, 7592, 8176, 9644, 13286, 15184, 16877, 19288, 26572, 31343, 33754, 38576, 53144, 62686, 67508, 106288, 125372, 135016, 176003, 219401, 250744, 270032, 352006, 438802, 501488, 704012, 877604, 1232021, 1408024, 1755208, 2288039, 2464042, 2816048, 3510416, 4576078, 4928084, 9152156, 9856168, 16016273, 18304312, 19712336, 32032546, 36608624, 64065092, 128130184, 256260368]

約数ペア:

[(1, 256260368), (2, 128130184), (4, 64065092), (7, 36608624), (8, 32032546), (13, 19712336), (14, 18304312), (16, 16016273), (26, 9856168), (28, 9152156), (52, 4928084), (56, 4576078), (73, 3510416), (91, 2816048), (104, 2464042), (112, 2288039), (146, 1755208), (182, 1408024), (208, 1232021), (292, 877604), (364, 704012), (511, 501488), (584, 438802), (728, 352006), (949, 270032), (1022, 250744), (1168, 219401), (1456, 176003), (1898, 135016), (2044, 125372), (2411, 106288), (3796, 67508), (4088, 62686), (4822, 53144), (6643, 38576), (7592, 33754), (8176, 31343), (9644, 26572), (13286, 19288), (15184, 16877)]