256468970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 501935616

約数和(自身を除く): 245466646

約数列:

[1, 2, 5, 10, 17, 34, 85, 97, 103, 151, 170, 194, 206, 302, 485, 515, 755, 970, 1030, 1510, 1649, 1751, 2567, 3298, 3502, 5134, 8245, 8755, 9991, 12835, 14647, 15553, 16490, 17510, 19982, 25670, 29294, 31106, 49955, 73235, 77765, 99910, 146470, 155530, 169847, 248999, 264401, 339694, 497998, 528802, 849235, 1244995, 1322005, 1508641, 1698470, 2489990, 2644010, 3017282, 7543205, 15086410, 25646897, 51293794, 128234485, 256468970]

約数ペア:

[(1, 256468970), (2, 128234485), (5, 51293794), (10, 25646897), (17, 15086410), (34, 7543205), (85, 3017282), (97, 2644010), (103, 2489990), (151, 1698470), (170, 1508641), (194, 1322005), (206, 1244995), (302, 849235), (485, 528802), (515, 497998), (755, 339694), (970, 264401), (1030, 248999), (1510, 169847), (1649, 155530), (1751, 146470), (2567, 99910), (3298, 77765), (3502, 73235), (5134, 49955), (8245, 31106), (8755, 29294), (9991, 25670), (12835, 19982), (14647, 17510), (15553, 16490)]