19756280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9319}}^1$

素因数の和:9383

約数の個数: 32

約数和(自身を含む): 45295200

約数和(自身を除く): 25538920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9319, 18638, 37276, 46595, 74552, 93190, 186380, 372760, 493907, 987814, 1975628, 2469535, 3951256, 4939070, 9878140, 19756280]

約数ペア:

[(1, 19756280), (2, 9878140), (4, 4939070), (5, 3951256), (8, 2469535), (10, 1975628), (20, 987814), (40, 493907), (53, 372760), (106, 186380), (212, 93190), (265, 74552), (424, 46595), (530, 37276), (1060, 18638), (2120, 9319)]