318629648

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{30971}}^1$

素因数の和:31622

約数の個数: 20

約数和(自身を含む): 618325008

約数和(自身を除く): 299695360

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 10288, 30971, 61942, 123884, 247768, 495536, 19914353, 39828706, 79657412, 159314824, 318629648]

約数ペア:

[(1, 318629648), (2, 159314824), (4, 79657412), (8, 39828706), (16, 19914353), (643, 495536), (1286, 247768), (2572, 123884), (5144, 61942), (10288, 30971)]