19877060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6173}}^1$

素因数の和:6212

約数の個数: 48

約数和(自身を含む): 49787136

約数和(自身を除く): 29910076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6173, 12346, 24692, 30865, 43211, 61730, 86422, 123460, 141979, 172844, 216055, 283958, 432110, 567916, 709895, 864220, 993853, 1419790, 1987706, 2839580, 3975412, 4969265, 9938530, 19877060]

約数ペア:

[(1, 19877060), (2, 9938530), (4, 4969265), (5, 3975412), (7, 2839580), (10, 1987706), (14, 1419790), (20, 993853), (23, 864220), (28, 709895), (35, 567916), (46, 432110), (70, 283958), (92, 216055), (115, 172844), (140, 141979), (161, 123460), (230, 86422), (322, 61730), (460, 43211), (644, 30865), (805, 24692), (1610, 12346), (3220, 6173)]