20664180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2251}}^1$

素因数の和:2286

約数の個数: 96

約数和(自身を含む): 68100480

約数和(自身を除く): 47436300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 306, 340, 459, 510, 540, 612, 765, 918, 1020, 1530, 1836, 2251, 2295, 3060, 4502, 4590, 6753, 9004, 9180, 11255, 13506, 20259, 22510, 27012, 33765, 38267, 40518, 45020, 60777, 67530, 76534, 81036, 101295, 114801, 121554, 135060, 153068, 191335, 202590, 229602, 243108, 303885, 344403, 382670, 405180, 459204, 574005, 607770, 688806, 765340, 1033209, 1148010, 1215540, 1377612, 1722015, 2066418, 2296020, 3444030, 4132836, 5166045, 6888060, 10332090, 20664180]

約数ペア:

[(1, 20664180), (2, 10332090), (3, 6888060), (4, 5166045), (5, 4132836), (6, 3444030), (9, 2296020), (10, 2066418), (12, 1722015), (15, 1377612), (17, 1215540), (18, 1148010), (20, 1033209), (27, 765340), (30, 688806), (34, 607770), (36, 574005), (45, 459204), (51, 405180), (54, 382670), (60, 344403), (68, 303885), (85, 243108), (90, 229602), (102, 202590), (108, 191335), (135, 153068), (153, 135060), (170, 121554), (180, 114801), (204, 101295), (255, 81036), (270, 76534), (306, 67530), (340, 60777), (459, 45020), (510, 40518), (540, 38267), (612, 33765), (765, 27012), (918, 22510), (1020, 20259), (1530, 13506), (1836, 11255), (2251, 9180), (2295, 9004), (3060, 6753), (4502, 4590)]