27965480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 65577600

約数和(自身を除く): 37612120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 229, 284, 344, 355, 430, 458, 568, 710, 860, 916, 1145, 1420, 1720, 1832, 2290, 2840, 3053, 4580, 6106, 9160, 9847, 12212, 15265, 16259, 19694, 24424, 30530, 32518, 39388, 49235, 61060, 65036, 78776, 81295, 98470, 122120, 130072, 162590, 196940, 325180, 393880, 650360, 699137, 1398274, 2796548, 3495685, 5593096, 6991370, 13982740, 27965480]

約数ペア:

[(1, 27965480), (2, 13982740), (4, 6991370), (5, 5593096), (8, 3495685), (10, 2796548), (20, 1398274), (40, 699137), (43, 650360), (71, 393880), (86, 325180), (142, 196940), (172, 162590), (215, 130072), (229, 122120), (284, 98470), (344, 81295), (355, 78776), (430, 65036), (458, 61060), (568, 49235), (710, 39388), (860, 32518), (916, 30530), (1145, 24424), (1420, 19694), (1720, 16259), (1832, 15265), (2290, 12212), (2840, 9847), (3053, 9160), (4580, 6106)]