19440890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1439}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 20786950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1439, 1930, 2702, 2878, 6755, 7195, 10073, 13510, 14390, 20146, 50365, 100730, 277727, 555454, 1388635, 1944089, 2777270, 3888178, 9720445, 19440890]

約数ペア:

[(1, 19440890), (2, 9720445), (5, 3888178), (7, 2777270), (10, 1944089), (14, 1388635), (35, 555454), (70, 277727), (193, 100730), (386, 50365), (965, 20146), (1351, 14390), (1439, 13510), (1930, 10073), (2702, 7195), (2878, 6755)]