21215388240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9821939}}^1$

素因数の和:9821961

約数の個数: 80

約数和(自身を含む): 73075233600

約数和(自身を除く): 51859845360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9821939, 19643878, 29465817, 39287756, 49109695, 58931634, 78575512, 88397451, 98219390, 117863268, 147329085, 157151024, 176794902, 196438780, 235726536, 265192353, 294658170, 353589804, 392877560, 441987255, 471453072, 530384706, 589316340, 707179608, 785755120, 883974510, 1060769412, 1178632680, 1325961765, 1414359216, 1767949020, 2121538824, 2357265360, 2651923530, 3535898040, 4243077648, 5303847060, 7071796080, 10607694120, 21215388240]

約数ペア:

[(1, 21215388240), (2, 10607694120), (3, 7071796080), (4, 5303847060), (5, 4243077648), (6, 3535898040), (8, 2651923530), (9, 2357265360), (10, 2121538824), (12, 1767949020), (15, 1414359216), (16, 1325961765), (18, 1178632680), (20, 1060769412), (24, 883974510), (27, 785755120), (30, 707179608), (36, 589316340), (40, 530384706), (45, 471453072), (48, 441987255), (54, 392877560), (60, 353589804), (72, 294658170), (80, 265192353), (90, 235726536), (108, 196438780), (120, 176794902), (135, 157151024), (144, 147329085), (180, 117863268), (216, 98219390), (240, 88397451), (270, 78575512), (360, 58931634), (432, 49109695), (540, 39287756), (720, 29465817), (1080, 19643878), (2160, 9821939)]