19723570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 37857456

約数和(自身を除く): 18133886

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 181, 362, 641, 905, 1282, 1810, 3077, 3205, 6154, 6410, 10897, 15385, 21794, 30770, 54485, 108970, 116021, 232042, 580105, 1160210, 1972357, 3944714, 9861785, 19723570]

約数ペア:

[(1, 19723570), (2, 9861785), (5, 3944714), (10, 1972357), (17, 1160210), (34, 580105), (85, 232042), (170, 116021), (181, 108970), (362, 54485), (641, 30770), (905, 21794), (1282, 15385), (1810, 10897), (3077, 6410), (3205, 6154)]