19709720

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3307}}^1$

素因数の和:3467

約数の個数: 32

約数和(自身を含む): 44658000

約数和(自身を除く): 24948280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3307, 5960, 6614, 13228, 16535, 26456, 33070, 66140, 132280, 492743, 985486, 1970972, 2463715, 3941944, 4927430, 9854860, 19709720]

約数ペア:

[(1, 19709720), (2, 9854860), (4, 4927430), (5, 3941944), (8, 2463715), (10, 1970972), (20, 985486), (40, 492743), (149, 132280), (298, 66140), (596, 33070), (745, 26456), (1192, 16535), (1490, 13228), (2980, 6614), (3307, 5960)]