12940425

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1047

約数の個数: 48

約数和(自身を含む): 25048000

約数和(自身を除く): 12107575

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1009, 1425, 2565, 3027, 4275, 5045, 9081, 12825, 15135, 19171, 25225, 27243, 45405, 57513, 75675, 95855, 136215, 172539, 227025, 287565, 479275, 517617, 681075, 862695, 1437825, 2588085, 4313475, 12940425]

約数ペア:

[(1, 12940425), (3, 4313475), (5, 2588085), (9, 1437825), (15, 862695), (19, 681075), (25, 517617), (27, 479275), (45, 287565), (57, 227025), (75, 172539), (95, 136215), (135, 95855), (171, 75675), (225, 57513), (285, 45405), (475, 27243), (513, 25225), (675, 19171), (855, 15135), (1009, 12825), (1425, 9081), (2565, 5045), (3027, 4275)]