211697240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{278549}}^1$

素因数の和:278579

約数の個数: 32

約数和(自身を含む): 501390000

約数和(自身を除く): 289692760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 278549, 557098, 1114196, 1392745, 2228392, 2785490, 5292431, 5570980, 10584862, 11141960, 21169724, 26462155, 42339448, 52924310, 105848620, 211697240]

約数ペア:

[(1, 211697240), (2, 105848620), (4, 52924310), (5, 42339448), (8, 26462155), (10, 21169724), (19, 11141960), (20, 10584862), (38, 5570980), (40, 5292431), (76, 2785490), (95, 2228392), (152, 1392745), (190, 1114196), (380, 557098), (760, 278549)]