27987820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28559}}^1$

素因数の和:28582

約数の個数: 36

約数和(自身を含む): 68372640

約数和(自身を除く): 40384820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28559, 57118, 114236, 142795, 199913, 285590, 399826, 571180, 799652, 999565, 1399391, 1999130, 2798782, 3998260, 5597564, 6996955, 13993910, 27987820]

約数ペア:

[(1, 27987820), (2, 13993910), (4, 6996955), (5, 5597564), (7, 3998260), (10, 2798782), (14, 1999130), (20, 1399391), (28, 999565), (35, 799652), (49, 571180), (70, 399826), (98, 285590), (140, 199913), (196, 142795), (245, 114236), (490, 57118), (980, 28559)]