18378280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8669}}^1$

素因数の和:8733

約数の個数: 32

約数和(自身を含む): 42136200

約数和(自身を除く): 23757920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8669, 17338, 34676, 43345, 69352, 86690, 173380, 346760, 459457, 918914, 1837828, 2297285, 3675656, 4594570, 9189140, 18378280]

約数ペア:

[(1, 18378280), (2, 9189140), (4, 4594570), (5, 3675656), (8, 2297285), (10, 1837828), (20, 918914), (40, 459457), (53, 346760), (106, 173380), (212, 86690), (265, 69352), (424, 43345), (530, 34676), (1060, 17338), (2120, 8669)]