20150925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 35712000

約数和(自身を除く): 15561075

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 79, 95, 179, 237, 285, 395, 475, 537, 895, 1185, 1425, 1501, 1975, 2685, 3401, 4475, 4503, 5925, 7505, 10203, 13425, 14141, 17005, 22515, 37525, 42423, 51015, 70705, 85025, 112575, 212115, 255075, 268679, 353525, 806037, 1060575, 1343395, 4030185, 6716975, 20150925]

約数ペア:

[(1, 20150925), (3, 6716975), (5, 4030185), (15, 1343395), (19, 1060575), (25, 806037), (57, 353525), (75, 268679), (79, 255075), (95, 212115), (179, 112575), (237, 85025), (285, 70705), (395, 51015), (475, 42423), (537, 37525), (895, 22515), (1185, 17005), (1425, 14141), (1501, 13425), (1975, 10203), (2685, 7505), (3401, 5925), (4475, 4503)]