18638459925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2659}}^1\times {\mathrm{4919}}^1$

素因数の和:7610

約数の個数: 48

約数和(自身を含む): 32456256000

約数和(自身を除く): 13817796075

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 2659, 4919, 7977, 13295, 14757, 24595, 39885, 50521, 66475, 73785, 93461, 122975, 151563, 199425, 252605, 280383, 368925, 467305, 757815, 1263025, 1401915, 2336525, 3789075, 7009575, 13079621, 39238863, 65398105, 196194315, 248512799, 326990525, 745538397, 980971575, 1242563995, 3727691985, 6212819975, 18638459925]

約数ペア:

[(1, 18638459925), (3, 6212819975), (5, 3727691985), (15, 1242563995), (19, 980971575), (25, 745538397), (57, 326990525), (75, 248512799), (95, 196194315), (285, 65398105), (475, 39238863), (1425, 13079621), (2659, 7009575), (4919, 3789075), (7977, 2336525), (13295, 1401915), (14757, 1263025), (24595, 757815), (39885, 467305), (50521, 368925), (66475, 280383), (73785, 252605), (93461, 199425), (122975, 151563)]