181002040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{61987}}^1$

素因数の和:62071

約数の個数: 32

約数和(自身を含む): 412840080

約数和(自身を除く): 231838040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 61987, 123974, 247948, 309935, 495896, 619870, 1239740, 2479480, 4525051, 9050102, 18100204, 22625255, 36200408, 45250510, 90501020, 181002040]

約数ペア:

[(1, 181002040), (2, 90501020), (4, 45250510), (5, 36200408), (8, 22625255), (10, 18100204), (20, 9050102), (40, 4525051), (73, 2479480), (146, 1239740), (292, 619870), (365, 495896), (584, 309935), (730, 247948), (1460, 123974), (2920, 61987)]