19275560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4421}}^1$

素因数の和:4541

約数の個数: 32

約数和(自身を含む): 43777800

約数和(自身を除く): 24502240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4421, 8842, 17684, 22105, 35368, 44210, 88420, 176840, 481889, 963778, 1927556, 2409445, 3855112, 4818890, 9637780, 19275560]

約数ペア:

[(1, 19275560), (2, 9637780), (4, 4818890), (5, 3855112), (8, 2409445), (10, 1927556), (20, 963778), (40, 481889), (109, 176840), (218, 88420), (436, 44210), (545, 35368), (872, 22105), (1090, 17684), (2180, 8842), (4360, 4421)]