720676

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1489}}^1$

素因数の和:1515

約数の個数: 18

約数和(自身を含む): 1387190

約数和(自身を除く): 666514

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1489, 2978, 5956, 16379, 32758, 65516, 180169, 360338, 720676]

約数ペア:

[(1, 720676), (2, 360338), (4, 180169), (11, 65516), (22, 32758), (44, 16379), (121, 5956), (242, 2978), (484, 1489)]