20111425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{599}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 26784000

約数和(自身を除く): 6672575

約数列:

[1, 5, 17, 25, 79, 85, 395, 425, 599, 1343, 1975, 2995, 6715, 10183, 14975, 33575, 47321, 50915, 236605, 254575, 804457, 1183025, 4022285, 20111425]

約数ペア:

[(1, 20111425), (5, 4022285), (17, 1183025), (25, 804457), (79, 254575), (85, 236605), (395, 50915), (425, 47321), (599, 33575), (1343, 14975), (1975, 10183), (2995, 6715)]