20253375

素因数分解:

$3^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 39761280

約数和(自身を除く): 19507905

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 353, 375, 425, 459, 675, 765, 1059, 1125, 1275, 1765, 2125, 2295, 3177, 3375, 3825, 5295, 6001, 6375, 8825, 9531, 11475, 15885, 18003, 19125, 26475, 30005, 44125, 47655, 54009, 57375, 79425, 90015, 132375, 150025, 162027, 238275, 270045, 397125, 450075, 750125, 810135, 1191375, 1350225, 2250375, 4050675, 6751125, 20253375]

約数ペア:

[(1, 20253375), (3, 6751125), (5, 4050675), (9, 2250375), (15, 1350225), (17, 1191375), (25, 810135), (27, 750125), (45, 450075), (51, 397125), (75, 270045), (85, 238275), (125, 162027), (135, 150025), (153, 132375), (225, 90015), (255, 79425), (353, 57375), (375, 54009), (425, 47655), (459, 44125), (675, 30005), (765, 26475), (1059, 19125), (1125, 18003), (1275, 15885), (1765, 11475), (2125, 9531), (2295, 8825), (3177, 6375), (3375, 6001), (3825, 5295)]