18815795

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 25116480

約数和(自身を除く): 6300685

約数列:

[1, 5, 19, 37, 53, 95, 101, 185, 265, 505, 703, 1007, 1919, 1961, 3515, 3737, 5035, 5353, 9595, 9805, 18685, 26765, 37259, 71003, 101707, 186295, 198061, 355015, 508535, 990305, 3763159, 18815795]

約数ペア:

[(1, 18815795), (5, 3763159), (19, 990305), (37, 508535), (53, 355015), (95, 198061), (101, 186295), (185, 101707), (265, 71003), (505, 37259), (703, 26765), (1007, 18685), (1919, 9805), (1961, 9595), (3515, 5353), (3737, 5035)]