2781540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:139

約数の個数: 120

約数和(自身を含む): 9330552

約数和(自身を除く): 6549012

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, 81, 85, 90, 101, 102, 108, 135, 153, 162, 170, 180, 202, 204, 255, 270, 303, 306, 324, 340, 404, 405, 459, 505, 510, 540, 606, 612, 765, 810, 909, 918, 1010, 1020, 1212, 1377, 1515, 1530, 1620, 1717, 1818, 1836, 2020, 2295, 2727, 2754, 3030, 3060, 3434, 3636, 4545, 4590, 5151, 5454, 5508, 6060, 6868, 6885, 8181, 8585, 9090, 9180, 10302, 10908, 13635, 13770, 15453, 16362, 17170, 18180, 20604, 25755, 27270, 27540, 30906, 32724, 34340, 40905, 46359, 51510, 54540, 61812, 77265, 81810, 92718, 103020, 139077, 154530, 163620, 185436, 231795, 278154, 309060, 463590, 556308, 695385, 927180, 1390770, 2781540]

約数ペア:

[(1, 2781540), (2, 1390770), (3, 927180), (4, 695385), (5, 556308), (6, 463590), (9, 309060), (10, 278154), (12, 231795), (15, 185436), (17, 163620), (18, 154530), (20, 139077), (27, 103020), (30, 92718), (34, 81810), (36, 77265), (45, 61812), (51, 54540), (54, 51510), (60, 46359), (68, 40905), (81, 34340), (85, 32724), (90, 30906), (101, 27540), (102, 27270), (108, 25755), (135, 20604), (153, 18180), (162, 17170), (170, 16362), (180, 15453), (202, 13770), (204, 13635), (255, 10908), (270, 10302), (303, 9180), (306, 9090), (324, 8585), (340, 8181), (404, 6885), (405, 6868), (459, 6060), (505, 5508), (510, 5454), (540, 5151), (606, 4590), (612, 4545), (765, 3636), (810, 3434), (909, 3060), (918, 3030), (1010, 2754), (1020, 2727), (1212, 2295), (1377, 2020), (1515, 1836), (1530, 1818), (1620, 1717)]