18288545

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 26685120

約数和(自身を除く): 8396575

約数列:

[1, 5, 11, 19, 37, 43, 55, 95, 121, 185, 209, 215, 407, 473, 605, 703, 817, 1045, 1591, 2035, 2299, 2365, 3515, 4085, 4477, 5203, 7733, 7955, 8987, 11495, 17501, 22385, 26015, 30229, 38665, 44935, 85063, 87505, 98857, 151145, 192511, 332519, 425315, 494285, 962555, 1662595, 3657709, 18288545]

約数ペア:

[(1, 18288545), (5, 3657709), (11, 1662595), (19, 962555), (37, 494285), (43, 425315), (55, 332519), (95, 192511), (121, 151145), (185, 98857), (209, 87505), (215, 85063), (407, 44935), (473, 38665), (605, 30229), (703, 26015), (817, 22385), (1045, 17501), (1591, 11495), (2035, 8987), (2299, 7955), (2365, 7733), (3515, 5203), (4085, 4477)]