28253475

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2203}}^1$

素因数の和:2241

約数の個数: 48

約数和(自身を含む): 54659200

約数和(自身を除く): 26405725

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1425, 2203, 2565, 4275, 6609, 11015, 12825, 19827, 33045, 41857, 55075, 59481, 99135, 125571, 165225, 209285, 297405, 376713, 495675, 627855, 1046425, 1130139, 1487025, 1883565, 3139275, 5650695, 9417825, 28253475]

約数ペア:

[(1, 28253475), (3, 9417825), (5, 5650695), (9, 3139275), (15, 1883565), (19, 1487025), (25, 1130139), (27, 1046425), (45, 627855), (57, 495675), (75, 376713), (95, 297405), (135, 209285), (171, 165225), (225, 125571), (285, 99135), (475, 59481), (513, 55075), (675, 41857), (855, 33045), (1425, 19827), (2203, 12825), (2565, 11015), (4275, 6609)]