39999820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6079}}^1$

素因数の和:6142

約数の個数: 48

約数和(自身を含む): 98058240

約数和(自身を除く): 58058420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6079, 6580, 12158, 24316, 30395, 42553, 60790, 85106, 121580, 170212, 212765, 285713, 425530, 571426, 851060, 1142852, 1428565, 1999991, 2857130, 3999982, 5714260, 7999964, 9999955, 19999910, 39999820]

約数ペア:

[(1, 39999820), (2, 19999910), (4, 9999955), (5, 7999964), (7, 5714260), (10, 3999982), (14, 2857130), (20, 1999991), (28, 1428565), (35, 1142852), (47, 851060), (70, 571426), (94, 425530), (140, 285713), (188, 212765), (235, 170212), (329, 121580), (470, 85106), (658, 60790), (940, 42553), (1316, 30395), (1645, 24316), (3290, 12158), (6079, 6580)]