21280680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59113}}^1$

素因数の和:59130

約数の個数: 48

約数和(自身を含む): 69163380

約数和(自身を除く): 47882700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59113, 118226, 177339, 236452, 295565, 354678, 472904, 532017, 591130, 709356, 886695, 1064034, 1182260, 1418712, 1773390, 2128068, 2364520, 2660085, 3546780, 4256136, 5320170, 7093560, 10640340, 21280680]

約数ペア:

[(1, 21280680), (2, 10640340), (3, 7093560), (4, 5320170), (5, 4256136), (6, 3546780), (8, 2660085), (9, 2364520), (10, 2128068), (12, 1773390), (15, 1418712), (18, 1182260), (20, 1064034), (24, 886695), (30, 709356), (36, 591130), (40, 532017), (45, 472904), (60, 354678), (72, 295565), (90, 236452), (120, 177339), (180, 118226), (360, 59113)]