20644290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 57822336

約数和(自身を除く): 37178046

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 103, 131, 153, 170, 206, 255, 262, 306, 309, 393, 510, 515, 618, 655, 765, 786, 927, 1030, 1179, 1310, 1530, 1545, 1751, 1854, 1965, 2227, 2358, 3090, 3502, 3930, 4454, 4635, 5253, 5895, 6681, 8755, 9270, 10506, 11135, 11790, 13362, 13493, 15759, 17510, 20043, 22270, 26265, 26986, 31518, 33405, 40086, 40479, 52530, 66810, 67465, 78795, 80958, 100215, 121437, 134930, 157590, 200430, 202395, 229381, 242874, 404790, 458762, 607185, 688143, 1146905, 1214370, 1376286, 2064429, 2293810, 3440715, 4128858, 6881430, 10322145, 20644290]

約数ペア:

[(1, 20644290), (2, 10322145), (3, 6881430), (5, 4128858), (6, 3440715), (9, 2293810), (10, 2064429), (15, 1376286), (17, 1214370), (18, 1146905), (30, 688143), (34, 607185), (45, 458762), (51, 404790), (85, 242874), (90, 229381), (102, 202395), (103, 200430), (131, 157590), (153, 134930), (170, 121437), (206, 100215), (255, 80958), (262, 78795), (306, 67465), (309, 66810), (393, 52530), (510, 40479), (515, 40086), (618, 33405), (655, 31518), (765, 26986), (786, 26265), (927, 22270), (1030, 20043), (1179, 17510), (1310, 15759), (1530, 13493), (1545, 13362), (1751, 11790), (1854, 11135), (1965, 10506), (2227, 9270), (2358, 8755), (3090, 6681), (3502, 5895), (3930, 5253), (4454, 4635)]