17420840

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{953}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 39323880

約数和(自身を除く): 21903040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 953, 1828, 1906, 2285, 3656, 3812, 4570, 4765, 7624, 9140, 9530, 18280, 19060, 38120, 435521, 871042, 1742084, 2177605, 3484168, 4355210, 8710420, 17420840]

約数ペア:

[(1, 17420840), (2, 8710420), (4, 4355210), (5, 3484168), (8, 2177605), (10, 1742084), (20, 871042), (40, 435521), (457, 38120), (914, 19060), (953, 18280), (1828, 9530), (1906, 9140), (2285, 7624), (3656, 4765), (3812, 4570)]