19600840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70003}}^1$

素因数の和:70021

約数の個数: 32

約数和(自身を含む): 50402880

約数和(自身を除く): 30802040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70003, 140006, 280012, 350015, 490021, 560024, 700030, 980042, 1400060, 1960084, 2450105, 2800120, 3920168, 4900210, 9800420, 19600840]

約数ペア:

[(1, 19600840), (2, 9800420), (4, 4900210), (5, 3920168), (7, 2800120), (8, 2450105), (10, 1960084), (14, 1400060), (20, 980042), (28, 700030), (35, 560024), (40, 490021), (56, 350015), (70, 280012), (140, 140006), (280, 70003)]