20166165

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 39988080

約数和(自身を除く): 19821915

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 81, 85, 87, 101, 135, 145, 153, 255, 261, 303, 405, 435, 459, 493, 505, 765, 783, 909, 1305, 1377, 1479, 1515, 1717, 2295, 2349, 2465, 2727, 2929, 3915, 4437, 4545, 5151, 6885, 7395, 8181, 8585, 8787, 11745, 13311, 13635, 14645, 15453, 22185, 25755, 26361, 39933, 40905, 43935, 46359, 49793, 66555, 77265, 79083, 131805, 139077, 149379, 199665, 231795, 237249, 248965, 395415, 448137, 695385, 746895, 1186245, 1344411, 2240685, 4033233, 6722055, 20166165]

約数ペア:

[(1, 20166165), (3, 6722055), (5, 4033233), (9, 2240685), (15, 1344411), (17, 1186245), (27, 746895), (29, 695385), (45, 448137), (51, 395415), (81, 248965), (85, 237249), (87, 231795), (101, 199665), (135, 149379), (145, 139077), (153, 131805), (255, 79083), (261, 77265), (303, 66555), (405, 49793), (435, 46359), (459, 43935), (493, 40905), (505, 39933), (765, 26361), (783, 25755), (909, 22185), (1305, 15453), (1377, 14645), (1479, 13635), (1515, 13311), (1717, 11745), (2295, 8787), (2349, 8585), (2465, 8181), (2727, 7395), (2929, 6885), (3915, 5151), (4437, 4545)]