80721360

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{12457}}^1$

素因数の和:12482

約数の個数: 100

約数和(自身を含む): 280379748

約数和(自身を除く): 199658388

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 12457, 24914, 37371, 49828, 62285, 74742, 99656, 112113, 124570, 149484, 186855, 199312, 224226, 249140, 298968, 336339, 373710, 448452, 498280, 560565, 597936, 672678, 747420, 896904, 996560, 1009017, 1121130, 1345356, 1494840, 1681695, 1793808, 2018034, 2242260, 2690712, 2989680, 3363390, 4036068, 4484520, 5045085, 5381424, 6726780, 8072136, 8969040, 10090170, 13453560, 16144272, 20180340, 26907120, 40360680, 80721360]

約数ペア:

[(1, 80721360), (2, 40360680), (3, 26907120), (4, 20180340), (5, 16144272), (6, 13453560), (8, 10090170), (9, 8969040), (10, 8072136), (12, 6726780), (15, 5381424), (16, 5045085), (18, 4484520), (20, 4036068), (24, 3363390), (27, 2989680), (30, 2690712), (36, 2242260), (40, 2018034), (45, 1793808), (48, 1681695), (54, 1494840), (60, 1345356), (72, 1121130), (80, 1009017), (81, 996560), (90, 896904), (108, 747420), (120, 672678), (135, 597936), (144, 560565), (162, 498280), (180, 448452), (216, 373710), (240, 336339), (270, 298968), (324, 249140), (360, 224226), (405, 199312), (432, 186855), (540, 149484), (648, 124570), (720, 112113), (810, 99656), (1080, 74742), (1296, 62285), (1620, 49828), (2160, 37371), (3240, 24914), (6480, 12457)]