20357225

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1907}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 29337408

約数和(自身を除く): 8980183

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 1907, 2135, 9535, 10675, 13349, 47675, 66745, 116327, 333725, 581635, 814289, 2908175, 4071445, 20357225]

約数ペア:

[(1, 20357225), (5, 4071445), (7, 2908175), (25, 814289), (35, 581635), (61, 333725), (175, 116327), (305, 66745), (427, 47675), (1525, 13349), (1907, 10675), (2135, 9535)]