639892204

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{737203}}^1$

素因数の和:737245

約数の個数: 24

約数和(自身を含む): 1321069568

約数和(自身を除く): 681177364

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 737203, 1474406, 2948812, 5160421, 10320842, 20641684, 22853293, 45706586, 91413172, 159973051, 319946102, 639892204]

約数ペア:

[(1, 639892204), (2, 319946102), (4, 159973051), (7, 91413172), (14, 45706586), (28, 22853293), (31, 20641684), (62, 10320842), (124, 5160421), (217, 2948812), (434, 1474406), (868, 737203)]