25256390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 26065210

約数列:

[1, 2, 5, 10, 17, 29, 34, 47, 58, 85, 94, 109, 145, 170, 218, 235, 290, 470, 493, 545, 799, 986, 1090, 1363, 1598, 1853, 2465, 2726, 3161, 3706, 3995, 4930, 5123, 6322, 6815, 7990, 9265, 10246, 13630, 15805, 18530, 23171, 25615, 31610, 46342, 51230, 53737, 87091, 107474, 115855, 148567, 174182, 231710, 268685, 297134, 435455, 537370, 742835, 870910, 1485670, 2525639, 5051278, 12628195, 25256390]

約数ペア:

[(1, 25256390), (2, 12628195), (5, 5051278), (10, 2525639), (17, 1485670), (29, 870910), (34, 742835), (47, 537370), (58, 435455), (85, 297134), (94, 268685), (109, 231710), (145, 174182), (170, 148567), (218, 115855), (235, 107474), (290, 87091), (470, 53737), (493, 51230), (545, 46342), (799, 31610), (986, 25615), (1090, 23171), (1363, 18530), (1598, 15805), (1853, 13630), (2465, 10246), (2726, 9265), (3161, 7990), (3706, 6815), (3995, 6322), (4930, 5123)]