25458520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1291}}^1$

素因数の和:1348

約数の個数: 64

約数和(自身を含む): 62791200

約数和(自身を除く): 37332680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1291, 1972, 2465, 2582, 3944, 4930, 5164, 6455, 9860, 10328, 12910, 19720, 21947, 25820, 37439, 43894, 51640, 74878, 87788, 109735, 149756, 175576, 187195, 219470, 299512, 374390, 438940, 636463, 748780, 877880, 1272926, 1497560, 2545852, 3182315, 5091704, 6364630, 12729260, 25458520]

約数ペア:

[(1, 25458520), (2, 12729260), (4, 6364630), (5, 5091704), (8, 3182315), (10, 2545852), (17, 1497560), (20, 1272926), (29, 877880), (34, 748780), (40, 636463), (58, 438940), (68, 374390), (85, 299512), (116, 219470), (136, 187195), (145, 175576), (170, 149756), (232, 109735), (290, 87788), (340, 74878), (493, 51640), (580, 43894), (680, 37439), (986, 25820), (1160, 21947), (1291, 19720), (1972, 12910), (2465, 10328), (2582, 9860), (3944, 6455), (4930, 5164)]