12828280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4517}}^1$

素因数の和:4599

約数の個数: 32

約数和(自身を含む): 29276640

約数和(自身を除く): 16448360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4517, 9034, 18068, 22585, 36136, 45170, 90340, 180680, 320707, 641414, 1282828, 1603535, 2565656, 3207070, 6414140, 12828280]

約数ペア:

[(1, 12828280), (2, 6414140), (4, 3207070), (5, 2565656), (8, 1603535), (10, 1282828), (20, 641414), (40, 320707), (71, 180680), (142, 90340), (284, 45170), (355, 36136), (568, 22585), (710, 18068), (1420, 9034), (2840, 4517)]