20264040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:696

約数の個数: 128

約数和(自身を含む): 69984000

約数和(自身を除く): 49719960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 647, 696, 783, 870, 1044, 1080, 1160, 1294, 1305, 1566, 1740, 1941, 2088, 2588, 2610, 3132, 3235, 3480, 3882, 3915, 5176, 5220, 5823, 6264, 6470, 7764, 7830, 9705, 10440, 11646, 12940, 15528, 15660, 17469, 18763, 19410, 23292, 25880, 29115, 31320, 34938, 37526, 38820, 46584, 56289, 58230, 69876, 75052, 77640, 87345, 93815, 112578, 116460, 139752, 150104, 168867, 174690, 187630, 225156, 232920, 281445, 337734, 349380, 375260, 450312, 506601, 562890, 675468, 698760, 750520, 844335, 1013202, 1125780, 1350936, 1688670, 2026404, 2251560, 2533005, 3377340, 4052808, 5066010, 6754680, 10132020, 20264040]

約数ペア:

[(1, 20264040), (2, 10132020), (3, 6754680), (4, 5066010), (5, 4052808), (6, 3377340), (8, 2533005), (9, 2251560), (10, 2026404), (12, 1688670), (15, 1350936), (18, 1125780), (20, 1013202), (24, 844335), (27, 750520), (29, 698760), (30, 675468), (36, 562890), (40, 506601), (45, 450312), (54, 375260), (58, 349380), (60, 337734), (72, 281445), (87, 232920), (90, 225156), (108, 187630), (116, 174690), (120, 168867), (135, 150104), (145, 139752), (174, 116460), (180, 112578), (216, 93815), (232, 87345), (261, 77640), (270, 75052), (290, 69876), (348, 58230), (360, 56289), (435, 46584), (522, 38820), (540, 37526), (580, 34938), (647, 31320), (696, 29115), (783, 25880), (870, 23292), (1044, 19410), (1080, 18763), (1160, 17469), (1294, 15660), (1305, 15528), (1566, 12940), (1740, 11646), (1941, 10440), (2088, 9705), (2588, 7830), (2610, 7764), (3132, 6470), (3235, 6264), (3480, 5823), (3882, 5220), (3915, 5176)]