20777580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:480

約数の個数: 96

約数和(自身を含む): 65419200

約数和(自身を除く): 44641620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 109, 135, 180, 218, 270, 327, 353, 436, 540, 545, 654, 706, 981, 1059, 1090, 1308, 1412, 1635, 1765, 1962, 2118, 2180, 2943, 3177, 3270, 3530, 3924, 4236, 4905, 5295, 5886, 6354, 6540, 7060, 9531, 9810, 10590, 11772, 12708, 14715, 15885, 19062, 19620, 21180, 29430, 31770, 38124, 38477, 47655, 58860, 63540, 76954, 95310, 115431, 153908, 190620, 192385, 230862, 346293, 384770, 461724, 577155, 692586, 769540, 1038879, 1154310, 1385172, 1731465, 2077758, 2308620, 3462930, 4155516, 5194395, 6925860, 10388790, 20777580]

約数ペア:

[(1, 20777580), (2, 10388790), (3, 6925860), (4, 5194395), (5, 4155516), (6, 3462930), (9, 2308620), (10, 2077758), (12, 1731465), (15, 1385172), (18, 1154310), (20, 1038879), (27, 769540), (30, 692586), (36, 577155), (45, 461724), (54, 384770), (60, 346293), (90, 230862), (108, 192385), (109, 190620), (135, 153908), (180, 115431), (218, 95310), (270, 76954), (327, 63540), (353, 58860), (436, 47655), (540, 38477), (545, 38124), (654, 31770), (706, 29430), (981, 21180), (1059, 19620), (1090, 19062), (1308, 15885), (1412, 14715), (1635, 12708), (1765, 11772), (1962, 10590), (2118, 9810), (2180, 9531), (2943, 7060), (3177, 6540), (3270, 6354), (3530, 5886), (3924, 5295), (4236, 4905)]