89278520

素因数分解:

$2^3\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1787}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 201150000

約数和(自身を除く): 111871480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1249, 1787, 2498, 3574, 4996, 6245, 7148, 8935, 9992, 12490, 14296, 17870, 24980, 35740, 49960, 71480, 2231963, 4463926, 8927852, 11159815, 17855704, 22319630, 44639260, 89278520]

約数ペア:

[(1, 89278520), (2, 44639260), (4, 22319630), (5, 17855704), (8, 11159815), (10, 8927852), (20, 4463926), (40, 2231963), (1249, 71480), (1787, 49960), (2498, 35740), (3574, 24980), (4996, 17870), (6245, 14296), (7148, 12490), (8935, 9992)]