320912

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 20

約数和(自身を含む): 642816

約数和(自身を除く): 321904

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 647, 1294, 2588, 5176, 10352, 20057, 40114, 80228, 160456, 320912]

約数ペア:

[(1, 320912), (2, 160456), (4, 80228), (8, 40114), (16, 20057), (31, 10352), (62, 5176), (124, 2588), (248, 1294), (496, 647)]