20293280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18119}}^1$

素因数の和:18141

約数の個数: 48

約数和(自身を含む): 54794880

約数和(自身を除く): 34501600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18119, 36238, 72476, 90595, 126833, 144952, 181190, 253666, 289904, 362380, 507332, 579808, 634165, 724760, 1014664, 1268330, 1449520, 2029328, 2536660, 2899040, 4058656, 5073320, 10146640, 20293280]

約数ペア:

[(1, 20293280), (2, 10146640), (4, 5073320), (5, 4058656), (7, 2899040), (8, 2536660), (10, 2029328), (14, 1449520), (16, 1268330), (20, 1014664), (28, 724760), (32, 634165), (35, 579808), (40, 507332), (56, 362380), (70, 289904), (80, 253666), (112, 181190), (140, 144952), (160, 126833), (224, 90595), (280, 72476), (560, 36238), (1120, 18119)]