19259840

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:589

約数の個数: 56

約数和(自身を含む): 46299120

約数和(自身を除く): 27039280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 433, 556, 695, 866, 1112, 1390, 1732, 2165, 2224, 2780, 3464, 4330, 4448, 5560, 6928, 8660, 8896, 11120, 13856, 17320, 22240, 27712, 34640, 44480, 60187, 69280, 120374, 138560, 240748, 300935, 481496, 601870, 962992, 1203740, 1925984, 2407480, 3851968, 4814960, 9629920, 19259840]

約数ペア:

[(1, 19259840), (2, 9629920), (4, 4814960), (5, 3851968), (8, 2407480), (10, 1925984), (16, 1203740), (20, 962992), (32, 601870), (40, 481496), (64, 300935), (80, 240748), (139, 138560), (160, 120374), (278, 69280), (320, 60187), (433, 44480), (556, 34640), (695, 27712), (866, 22240), (1112, 17320), (1390, 13856), (1732, 11120), (2165, 8896), (2224, 8660), (2780, 6928), (3464, 5560), (4330, 4448)]