289071890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{7723}}^1$

素因数の和:7946

約数の個数: 32

約数和(自身を含む): 550566720

約数和(自身を除く): 261494830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 197, 394, 985, 1970, 3743, 7486, 7723, 15446, 18715, 37430, 38615, 77230, 146737, 293474, 733685, 1467370, 1521431, 3042862, 7607155, 15214310, 28907189, 57814378, 144535945, 289071890]

約数ペア:

[(1, 289071890), (2, 144535945), (5, 57814378), (10, 28907189), (19, 15214310), (38, 7607155), (95, 3042862), (190, 1521431), (197, 1467370), (394, 733685), (985, 293474), (1970, 146737), (3743, 77230), (7486, 38615), (7723, 37430), (15446, 18715)]