19404760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15649}}^1$

素因数の和:15691

約数の個数: 32

約数和(自身を含む): 45072000

約数和(自身を除く): 25667240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15649, 31298, 62596, 78245, 125192, 156490, 312980, 485119, 625960, 970238, 1940476, 2425595, 3880952, 4851190, 9702380, 19404760]

約数ペア:

[(1, 19404760), (2, 9702380), (4, 4851190), (5, 3880952), (8, 2425595), (10, 1940476), (20, 970238), (31, 625960), (40, 485119), (62, 312980), (124, 156490), (155, 125192), (248, 78245), (310, 62596), (620, 31298), (1240, 15649)]