208728045

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{87517}}^1$

素因数の和:87581

約数の個数: 24

約数和(自身を含む): 368625816

約数和(自身を除く): 159897771

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 87517, 262551, 437585, 787653, 1312755, 3938265, 4638401, 13915203, 23192005, 41745609, 69576015, 208728045]

約数ペア:

[(1, 208728045), (3, 69576015), (5, 41745609), (9, 23192005), (15, 13915203), (45, 4638401), (53, 3938265), (159, 1312755), (265, 787653), (477, 437585), (795, 262551), (2385, 87517)]