19928320

素因数分解:

$2^8\times 5^1\times {\mathrm{15569}}^1$

素因数の和:15590

約数の個数: 36

約数和(自身を含む): 47737620

約数和(自身を除く): 27809300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15569, 31138, 62276, 77845, 124552, 155690, 249104, 311380, 498208, 622760, 996416, 1245520, 1992832, 2491040, 3985664, 4982080, 9964160, 19928320]

約数ペア:

[(1, 19928320), (2, 9964160), (4, 4982080), (5, 3985664), (8, 2491040), (10, 1992832), (16, 1245520), (20, 996416), (32, 622760), (40, 498208), (64, 311380), (80, 249104), (128, 155690), (160, 124552), (256, 77845), (320, 62276), (640, 31138), (1280, 15569)]