18585515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 25704000

約数和(自身を除く): 7118485

約数列:

[1, 5, 13, 19, 65, 95, 101, 149, 247, 505, 745, 1235, 1313, 1919, 1937, 2831, 6565, 9595, 9685, 14155, 15049, 24947, 36803, 75245, 124735, 184015, 195637, 285931, 978185, 1429655, 3717103, 18585515]

約数ペア:

[(1, 18585515), (5, 3717103), (13, 1429655), (19, 978185), (65, 285931), (95, 195637), (101, 184015), (149, 124735), (247, 75245), (505, 36803), (745, 24947), (1235, 15049), (1313, 14155), (1919, 9685), (1937, 9595), (2831, 6565)]