20896843520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2332237}}^1$

素因数の和:2332265

約数の個数: 72

約数和(自身を含む): 57205133664

約数和(自身を除く): 36308290144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 2332237, 4664474, 9328948, 11661185, 16325659, 18657896, 23322370, 32651318, 37315792, 46644740, 65302636, 74631584, 81628295, 93289480, 130605272, 149263168, 163256590, 186578960, 261210544, 298526336, 326513180, 373157920, 522421088, 597052672, 653026360, 746315840, 1044842176, 1306052720, 1492631680, 2089684352, 2612105440, 2985263360, 4179368704, 5224210880, 10448421760, 20896843520]

約数ペア:

[(1, 20896843520), (2, 10448421760), (4, 5224210880), (5, 4179368704), (7, 2985263360), (8, 2612105440), (10, 2089684352), (14, 1492631680), (16, 1306052720), (20, 1044842176), (28, 746315840), (32, 653026360), (35, 597052672), (40, 522421088), (56, 373157920), (64, 326513180), (70, 298526336), (80, 261210544), (112, 186578960), (128, 163256590), (140, 149263168), (160, 130605272), (224, 93289480), (256, 81628295), (280, 74631584), (320, 65302636), (448, 46644740), (560, 37315792), (640, 32651318), (896, 23322370), (1120, 18657896), (1280, 16325659), (1792, 11661185), (2240, 9328948), (4480, 4664474), (8960, 2332237)]