2168660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 5174400

約数和(自身を除く): 3005740

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 439, 494, 878, 988, 1235, 1756, 2195, 2470, 4390, 4940, 5707, 8341, 8780, 11414, 16682, 22828, 28535, 33364, 41705, 57070, 83410, 108433, 114140, 166820, 216866, 433732, 542165, 1084330, 2168660]

約数ペア:

[(1, 2168660), (2, 1084330), (4, 542165), (5, 433732), (10, 216866), (13, 166820), (19, 114140), (20, 108433), (26, 83410), (38, 57070), (52, 41705), (65, 33364), (76, 28535), (95, 22828), (130, 16682), (190, 11414), (247, 8780), (260, 8341), (380, 5707), (439, 4940), (494, 4390), (878, 2470), (988, 2195), (1235, 1756)]