15647925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 27776000

約数和(自身を除く): 12128075

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 79, 95, 139, 237, 285, 395, 417, 475, 695, 1185, 1425, 1501, 1975, 2085, 2641, 3475, 4503, 5925, 7505, 7923, 10425, 10981, 13205, 22515, 32943, 37525, 39615, 54905, 66025, 112575, 164715, 198075, 208639, 274525, 625917, 823575, 1043195, 3129585, 5215975, 15647925]

約数ペア:

[(1, 15647925), (3, 5215975), (5, 3129585), (15, 1043195), (19, 823575), (25, 625917), (57, 274525), (75, 208639), (79, 198075), (95, 164715), (139, 112575), (237, 66025), (285, 54905), (395, 39615), (417, 37525), (475, 32943), (695, 22515), (1185, 13205), (1425, 10981), (1501, 10425), (1975, 7923), (2085, 7505), (2641, 5925), (3475, 4503)]