19940595

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 36188160

約数和(自身を除く): 16247565

約数列:

[1, 3, 5, 15, 19, 31, 37, 57, 61, 93, 95, 111, 155, 183, 185, 285, 305, 465, 555, 589, 703, 915, 1147, 1159, 1767, 1891, 2109, 2257, 2945, 3441, 3477, 3515, 5673, 5735, 5795, 6771, 8835, 9455, 10545, 11285, 17205, 17385, 21793, 28365, 33855, 35929, 42883, 65379, 69967, 107787, 108965, 128649, 179645, 209901, 214415, 326895, 349835, 538935, 643245, 1049505, 1329373, 3988119, 6646865, 19940595]

約数ペア:

[(1, 19940595), (3, 6646865), (5, 3988119), (15, 1329373), (19, 1049505), (31, 643245), (37, 538935), (57, 349835), (61, 326895), (93, 214415), (95, 209901), (111, 179645), (155, 128649), (183, 108965), (185, 107787), (285, 69967), (305, 65379), (465, 42883), (555, 35929), (589, 33855), (703, 28365), (915, 21793), (1147, 17385), (1159, 17205), (1767, 11285), (1891, 10545), (2109, 9455), (2257, 8835), (2945, 6771), (3441, 5795), (3477, 5735), (3515, 5673)]