20275425

素因数分解:

$3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{929}}^1$

素因数の和:1042

約数の個数: 36

約数和(自身を含む): 36729420

約数和(自身を除く): 16453995

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 97, 225, 291, 485, 873, 929, 1455, 2425, 2787, 4365, 4645, 7275, 8361, 13935, 21825, 23225, 41805, 69675, 90113, 209025, 270339, 450565, 811017, 1351695, 2252825, 4055085, 6758475, 20275425]

約数ペア:

[(1, 20275425), (3, 6758475), (5, 4055085), (9, 2252825), (15, 1351695), (25, 811017), (45, 450565), (75, 270339), (97, 209025), (225, 90113), (291, 69675), (485, 41805), (873, 23225), (929, 21825), (1455, 13935), (2425, 8361), (2787, 7275), (4365, 4645)]