19953340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90697}}^1$

素因数の和:90717

約数の個数: 24

約数和(自身を含む): 45711792

約数和(自身を除く): 25758452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90697, 181394, 362788, 453485, 906970, 997667, 1813940, 1995334, 3990668, 4988335, 9976670, 19953340]

約数ペア:

[(1, 19953340), (2, 9976670), (4, 4988335), (5, 3990668), (10, 1995334), (11, 1813940), (20, 997667), (22, 906970), (44, 453485), (55, 362788), (110, 181394), (220, 90697)]