19884160

素因数分解:

$2^7\times 5^1\times {\mathrm{31069}}^1$

素因数の和:31088

約数の個数: 32

約数和(自身を含む): 47537100

約数和(自身を除く): 27652940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31069, 62138, 124276, 155345, 248552, 310690, 497104, 621380, 994208, 1242760, 1988416, 2485520, 3976832, 4971040, 9942080, 19884160]

約数ペア:

[(1, 19884160), (2, 9942080), (4, 4971040), (5, 3976832), (8, 2485520), (10, 1988416), (16, 1242760), (20, 994208), (32, 621380), (40, 497104), (64, 310690), (80, 248552), (128, 155345), (160, 124276), (320, 62138), (640, 31069)]